10 Best X-31 Model Kits (June 2026) Expert Reviews

If you are searching for the best X-31 model kits, you already know that building experimental and advanced aircraft models is one of the most rewarding hobbies out there. Our team spent weeks comparing kits from Tamiya, Hasegawa, Academy, Italeri, and several other manufacturers to find the ones that actually deliver on detail, build quality, and value. We looked at everything from 1/48 scale showpieces to compact 1/72 kits and even die-cast display models.

The X-series designation covers some of the most iconic experimental aircraft in aviation history, from forward-swept wing designs to supersonic research planes. Whether you want a traditional plastic model kit that you assemble from sprues, a pre-built die-cast replica for your desk, or a no-glue metal model you can finish in an afternoon, we found options for every skill level and budget.

In this guide, we review 10 of the best X-31 model kits and related experimental aircraft models available in 2026. Each one was evaluated on part fit, surface detail, decal quality, value, and how enjoyable the build experience is from opening the box to placing the finished model on your shelf.

Top 3 Picks for the X-31 Model Kits

10 Best X-31 Model Kits in 2026

1. Tamiya 1/48 F-16CJ Fighting Falcon – Best Engineered Kit Overall

When I opened the Tamiya 1/48 F-16CJ kit, the first thing I noticed was how clean every sprue looked. There is virtually no flash, and the panel lines are crisply scribed across every part. Tamiya has a reputation for engineering excellence, and this kit earns every bit of that praise. The curved form of the F-16 is reproduced with impressive accuracy, and the parts fit together with the kind of precision that makes you forget you are working with plastic.

The weapons load alone makes this kit stand out from the competition. You get AGM-88 HARM missiles, AIM-120C AMRAAMs, AIM-9M/X Sidewinders, an ECM pod, and fuel tanks. Polycaps on the centerline and inner wing pylons let you attach and detach stores without glue, which is a small but thoughtful detail that shows how much care Tamiya put into this design.

Building the cockpit was genuinely enjoyable. The instrument panels have embossed consoles, and the kit includes a seated pilot figure with two helmet options: a standard HGU-55 and a JHMCS helmet. That level of choice is rare at this scale and gives you the ability to personalize your build right out of the box. The canopy fits cleanly and can be posed open or closed.

The one thing I want to flag is that this is not a beginner kit. There are many small parts, and some of the weapons assembly requires patience and steady hands. The instruction steps are generally clear, but a few sections pack a lot into single diagrams, which can be confusing if you are not used to Tamiya’s layout style. Decal options cover three different USAF aircraft, including a 5th Air Force commander’s jet.

Who Should Build This Kit

This kit is ideal for intermediate to advanced modelers who want a rewarding build experience with outstanding results. If you have built a few 1/72 kits and want to step up to a larger, more detailed project, this F-16CJ is the perfect upgrade. The 1/48 scale gives you room to add aftermarket details, but the kit is complete enough that you do not need them.

It is also great for modelers who want display flexibility. With moveable horizontal stabilizers, positionable flaperons, and a full ordnance load that you can swap on and off, this kit lets you change up your display whenever you want without rebuilding anything.

Scale and Display Considerations

At 1/48 scale, the finished model measures roughly 12 inches long with a wingspan around 8 inches. This is large enough to show off all the surface detail and weapons but still fits comfortably on a standard display shelf. Plan for a display case that is at least 14 inches wide to give the model breathing room. The polycap pylon system means you can reconfigure the loadout for photography without risking damage to the model.

2. Hasegawa 1:72 F-14A Tomcat – Best Value Fighter Kit

The Hasegawa F-14A Tomcat is one of those kits that surprises you the more you build it. For the price, the level of detail is remarkable. The parts come off the sprues cleanly with almost no flash, and the panel lines are recessed rather than raised, which makes washing and weathering much easier. I found that the fuselage halves aligned well, and the wing sweep mechanism slots together without the frustration I have experienced with older Tomcat kits.

What really sold me on this kit are the decal options. You get markings for either the Sundowners or the Jolly Rogers, two of the most iconic Navy squadrons. The decals themselves are crisp and thin, conforming well to panel lines when applied with a setting solution. Having these two scheme options means you can choose the look that fits your collection, and both are historically accurate and visually striking.

The cockpit is acceptable for this scale and price point, though it will not blow you away. There is enough molded detail to look convincing under a closed canopy, but if you plan to display the canopy open, you might want to add an aftermarket photo-etch set to bring the instrument panels and ejection seats up a notch. Out of the box, though, it builds into a recognizable and impressive Tomcat.

I did run into a few fit issues around the nose section and the intake trunking. Nothing that a little putty and sanding could not fix, but it is worth mentioning so you are prepared. The instruction sheet uses very small text, so keep a magnifying glass or your phone camera handy to zoom in on the details.

Who Should Build This Kit

This is a strong choice for intermediate builders who want a detailed 1/72 fighter without spending a lot. If you have completed a few basic kits and understand fundamentals like seam cleanup and decal application, the Hasegawa Tomcat will push your skills just enough without being overwhelming. It is also a great option for experienced modelers who want a quick, satisfying build between larger projects.

Decal and Finish Options

The Sundowners scheme features bold red and white stripes on the tail, while the Jolly Rogers option gives you the classic skull and crossbones. Both schemes are well-researched and historically accurate. For the best results, use a gloss coat before applying the decals, then seal everything with a flat or satin clear coat depending on the finish you want.

3. Atlantis B-52 and X-15 Combo – Best Budget Two-in-One Kit

The Atlantis B-52 and X-15 combo kit is one of those rare finds that gives you two iconic aircraft in one box. The B-52 Stratofortress with the X-15 mounted underneath is a classic pairing that represents a real chapter in aviation history, when the B-52 served as a mothership for the X-15 rocket plane during high-speed research flights. Atlantis reissued this classic kit with updated decals and it is a fun build from start to finish.

The parts are crisply molded with no flash, which is impressive for a kit at this price. The B-52 features a large wingspan that gives it real presence on the shelf, and the X-15 is in scale with the bomber. I appreciated that Atlantis included a clear swivel display stand, so you can show off the B-52 in a banked attitude with the X-15 attached beneath the wing.

Assembly is straightforward and forgiving, making this a great weekend project. The parts count is manageable, and the instructions are easy to follow. You also have the option to add external fuel tanks to the B-52, which adds a nice touch of customization. This kit does require paint and glue, so plan accordingly.

The main downside is that the X-15 decals are extremely small, and applying them takes a steady hand and good tweezers. I also found that the box packaging can be flimsy, so if you are ordering online, be prepared for the possibility of a dented box. The parts inside are usually fine, but the presentation is not the best.

Who Should Build This Kit

This is an excellent starter kit for new modelers who want a manageable first project with impressive results. The parts fit well, the assembly is simple, and the finished display looks great without needing advanced techniques. It is also a fun option for experienced builders who want a nostalgic build that harkens back to the classic Aurora and Monogram boxings.

Display and Stand Options

The included clear swivel display stand lets you pose the B-52 in a banking attitude, which is the classic display configuration for this combo. You can also remove the X-15 and display it separately if you prefer. For the best visual impact, paint the B-52 in the classic white underside and natural metal topside scheme, with the X-15 in its distinctive gloss white with the black underside.

4. Academy 1:72 F-35A Lightning II – Best Modern Stealth Fighter Kit

The Academy F-35A Lightning II is a kit I keep coming back to because it strikes a great balance between detail and accessibility. The multi-colored parts are a smart feature: the main fuselage comes in a light gray that approximates the F-35’s actual finish, so you can build a decent-looking model even without painting. For modelers who do paint, the surface detail is there to support weathering, panel line washes, and the full range of finishing techniques.

What I really like about this kit is the configuration flexibility. You can build it in stealth mode with the weapons bays closed, or open it up in beast mode with the bay doors posed open and ordnance visible. The canopy is positionable, the landing gear can be built up or down, and a seated pilot figure is included. Academy also provides decals for three different aircraft, giving you plenty of marking options.

The panel lines are precisely reproduced and consistently scribed across the entire model. Academy clearly did their research on the F-35’s distinctive panel arrangement, and it shows. The kit captures the unique planform and proportions of the Lightning II well, avoiding the slightly chunky look that plagues some competing F-35 kits in this scale.

There are a couple of fit issues worth knowing about. Some builders have reported gaps between the upper and lower fuselage halves that require filling, and the cockpit tub can be a tight fit. The decals are adequate but not the thinnest I have used, and they may need a strong setting solution to conform to surface details. These are manageable issues, but they are worth knowing about before you start.

Who Should Build This Kit

This kit works well for both beginners and intermediate builders. Beginners will appreciate the multi-colored parts that let them skip painting, while intermediate builders can take advantage of the detailed surface to push their finishing skills. If you want a modern stealth fighter on your shelf without spending hours on cockpit detail, this is a solid pick.

Build Configuration Options

Academy gives you two main display configurations: stealth mode with everything buttoned up, or beast mode with weapons bay doors open. The positionable canopy and landing gear add even more display choices. I recommend deciding on your configuration before starting assembly, because some of the bay door parts need to be attached differently depending on which mode you choose.

5. Tamiya 1:72 F-16CJ Fighting Falcon – Best 1/72 Scale F-16

Experienced modelers often call the Tamiya 1/72 F-16CJ one of the best F-16 kits in any scale, and after building one, I understand why. The engineering is outstanding. Every part has been designed to fit with minimal cleanup, and the panel lines and rivet detail are among the finest I have seen in 1/72 scale. You can feel the precision in every connection point.

The kit includes parts for AIM-120C AMRAAM and AIM-9M Sidewinder air-to-air missiles, along with a pilot figure and three marking options. The cockpit has embossed instrument consoles, which is unusual detail for this scale and adds a lot of visual interest even under a closed canopy. At 120 pieces, this kit has enough complexity to keep you engaged without being overwhelming.

The build process is smooth and enjoyable when you take your time. The wing-to-fuselage joint is particularly well engineered, with a positive lock that holds alignment without clamps. The intake trunking is simplified but looks convincing when assembled, and the landing gear has enough detail to satisfy picky builders without being fiddly.

The main drawback is that Tamiya’s decals tend to be on the thick side, which can make them reluctant to settle into panel lines. A good decal setting solution helps, but you may still see some silvering if you do not apply a gloss coat first. The cockpit also lacks decals for the instrument panels, which is a surprising omission at this quality level.

Who Should Build This Kit

This kit is best suited for intermediate to advanced builders who want a premium 1/72 F-16 without stepping up to the larger and more expensive 1/48 scale. If you have built a few simpler kits and want something that will test your skills while delivering outstanding results, this is the one. It is also perfect for modelers with limited display space who do not want to compromise on detail.

Weapons and Ordnance Detail

The AIM-120C AMRAAMs and AIM-9M Sidewinders are well molded with fins that are thin but durable enough to survive handling. The kit also includes wing tanks and centerline stores. All weapons mount cleanly to the pylons, and the overall weapons load looks accurate for a CJ-model F-16 in an air-to-air configuration.

6. Hasegawa 1:72 X-29A Forward-Swept Wing – Best Experimental Aircraft Kit

The Hasegawa X-29A is a kit that captures one of the most unusual experimental aircraft ever built. The Grumman X-29’s forward-swept wings make it instantly recognizable, and Hasegawa has done a fine job reproducing those distinctive wings and the canard layout. This kit goes together easily, which is refreshing for an experimental aircraft model. The parts fit well and the instructions are clear and detailed.

What impressed me most was the quality of the waterslide decals. They are sharp, well-printed, and include enough stencils and markings to give the finished model a realistic, research-aircraft look. The decal sheet covers the distinctive red and white NASA test scheme, and the markings align well with the panel lines and surface details of the kit.

The X-29A is not a complex kit in terms of parts count, but the unusual shape of the aircraft makes it visually interesting on the shelf. The forward-swept wings, canards, and three-surface configuration are all faithfully reproduced. The kit does require paint and glue, so plan to pick up some light gray, white, and red for the classic NASA scheme.

I did find that applying some of the decals on the curved surfaces of the forward fuselage and wing roots required patience and a generous amount of setting solution. The box packaging is also on the thin side, so there is a risk of damage during shipping. Despite these minor issues, the finished model looks fantastic and is a real conversation piece.

Who Should Build This Kit

This is a great kit for modelers at any experience level who have an interest in experimental aviation. Beginners will appreciate the straightforward assembly, while more experienced builders will enjoy the unusual subject matter. If you want something different from the standard fighter jet lineup, the X-29A is a refreshing change of pace.

Unique Build Challenges

The forward-swept wings are the main challenge because they need to be aligned precisely to look right. Take your time with the wing-to-fuselage joint and dry-fit the parts before committing with glue. The canard surfaces also need careful alignment to sit at the correct angle. Using a jig or blue tack to hold parts while the glue sets can make a big difference in the final result.

7. Italeri 1:72 F-117A Nighthawk – Best Stealth Display Kit

The Italeri F-117A Nighthawk is a kit that wins on simplicity and character. The F-117’s faceted stealth shape is one of the most recognizable silhouettes in military aviation, and Italeri captures it well in 1/72 scale. The kit is straightforward to build, making it one of the most beginner-friendly options in this roundup. You can build it in flying configuration or with the bomb bay doors open, which adds a nice touch of variety.

One of the best things about this kit is the paint job, or rather how easy it is. The F-117 is mostly black, which means you can get a convincing finish with minimal effort. A few shades of dark gray for panel variation and a flat clear coat will give you a great-looking model without advanced weathering skills. This makes it an ideal project for someone just getting into aircraft modeling.

The quality of the molds is high, with clean edges and sharp facets that accurately represent the Nighthawk’s unique shape. The parts fit together well for the most part, and the build moves along quickly. I had mine assembled in a couple of leisurely evenings, which is fast for a military aircraft model.

The cockpit is the weakest point of this kit. It is minimal to the point of being bare, with almost no molded detail. If you plan to display the canopy open, you will want to invest in an aftermarket cockpit set or add some scratch-built detail. The packaging is also hit-or-miss; my kit arrived with the box partially flattened inside a shipping bag, though the parts were undamaged.

Who Should Build This Kit

This kit is perfect for beginners who want a cool-looking military aircraft model without a steep learning curve. The mostly-black paint scheme is forgiving, and the simple construction means you can focus on learning the basics of assembly, seam cleanup, and decal application. Experienced modelers looking for a quick weekend build will also enjoy this one.

Painting and Weathering Tips

Even though the F-117 is predominantly black, you can create visual interest by using slightly different shades across the facets. Try a base coat of flat black, then mix in a small amount of dark gray for alternate panels. A light dry brush of dark gray along the panel edges will pick out the faceted structure. Finish with a satin clear coat to match the real aircraft’s low-observable finish, which is slightly less flat than pure matte.

8. NUOTIE 1/72 F-16D X-62 VISTA – Best Die-Cast Display Model

The NUOTIE F-16D X-62 VISTA is a different kind of product compared to the other kits in this roundup. Rather than a build-it-yourself plastic model, this is a pre-built die-cast display model made from zinc alloy. If you want an impressive-looking aircraft for your desk without the time investment of assembling and painting a kit, this is a strong option. The X-62 VISTA is the USAF Test Pilot School’s variable-stability training aircraft, and the authentic livery is a great touch.

The die-cast construction gives this model real heft in your hand. It feels substantial, not like a lightweight toy. The detailing is surprisingly good for a pre-built model at this price, with panel lines, sensor fairings, and distinctive markings all faithfully represented. The model comes with a simulated pilot figure and a minimalist display stand that looks clean on a desk or shelf.

I like that the landing gear is detachable, so you can display the model in flight configuration on the stand or in ground configuration with the gear extended. The weapons load is included and adds to the visual impact, though some builders have noted that the weapons can disconnect easily during handling, so be gentle when positioning the model.

The main concern with this model is quality consistency. Some customers have reported variations in finish and fit between units, so there is an element of luck involved. The packaging could also be more robust. That said, the majority of reviews praise the display quality, and the X-62 VISTA markings make this a unique addition to any military aviation collection.

Who Is This Model For

This model is ideal for collectors and aviation enthusiasts who want a display piece without the time commitment of building a kit from scratch. It is also a great gift option for someone who appreciates military aircraft but may not have the skills or patience for model building. The USAF Test Pilot School livery makes it especially appealing to those with an interest in test aviation and experimental programs.

Display Quality and Details

The zinc alloy construction gives the model a premium feel that plastic kits simply cannot match. The weight and cool-to-the-touch metal surface create a sensory experience that enhances the display value. The stand holds the model securely in a slight bank angle, which looks dynamic on a desk. For the best display, position it where light can catch the subtle variations in the gray paint scheme.

9. Hasegawa 1:72 Sea Harrier GR.MK 3 – Best VTOL Aircraft Kit

The Hasegawa Sea Harrier GR.MK 3 brings one of aviation’s most distinctive aircraft to your workbench. The Harrier’s ability to take off and land vertically made it legendary, and this 1/72 kit captures the unique design features that make the Sea Harrier instantly recognizable. The oversized intake scoops, the outrigger wheels, and the vectored thrust nozzles are all present and well-rendered.

With a perfect 4.9 rating from reviewers, this kit has clearly impressed everyone who has built it. The scale accuracy is excellent, and the parts have the clean molding quality that Hasegawa is known for. The decals include appropriate markings for the Sea Harrier GR.MK 3 variant, and the instructions are clear and easy to follow throughout the build process.

Assembly is straightforward and follows the standard Hasegawa approach of well-engineered parts that fit together cleanly. The nozzles can be positioned in different thrust angles, which is a nice touch that lets you show the Harrier in hover, forward flight, or anywhere in between. This is one of those kits where the unusual shape of the subject makes the build inherently interesting.

The main thing to be aware of is that this is a traditional model kit that requires both glue and paint. Hasegawa recommends acrylic paints for the best results. The review data is limited because this is a niche subject, but the feedback that does exist is overwhelmingly positive. If you have any interest in VTOL aircraft or British military aviation, this kit belongs in your collection.

Who Should Build This Kit

This kit is well suited for intermediate builders who appreciate historically significant aircraft. The Sea Harrier GR.MK 3 served with distinction during the Falklands War, giving this model real historical weight. If you enjoy building kits with stories behind them, the Harrier delivers on that front while also being a visually unique addition to your display shelf.

Historical Significance

The Sea Harrier GR.MK 3 was the Royal Navy’s primary fighter during the Falklands conflict, where it achieved an impressive air-to-air combat record against Argentine forces. Building this model is a way to connect with that history. Consider adding custom markings for a specific Falklands-era aircraft to make your build even more meaningful and personal.

10. Metal Earth Bell X-1 3D Metal Model – Best No-Glue Desktop Kit

The Metal Earth Bell X-1 takes a completely different approach to model building. Instead of plastic sprues and glue, you get three small steel sheets with 47 precision-etched pieces that you clip out and connect using tabs and holes. It is a clever system that produces a surprisingly detailed little model of the aircraft that first broke the sound barrier. Chuck Yeager’s Bell X-1 is an aviation legend, and this kit captures its distinctive orange shape.

What I like about this model is the accessibility. You do not need glue, paint, or any special tools beyond a pair of tweezers and maybe some needle-nose pliers. The pieces pop out of the metal sheets cleanly, and the instructions walk you through the assembly step by step. At moderate difficulty, it is a good afternoon project that does not require a dedicated workspace or cleanup.

The finished model is small, measuring about 7 inches long, but it looks sharp on a desk or bookshelf. The etched details give it a distinctive metal texture that sets it apart from plastic models. It is a great conversation piece and an easy way to add some aviation flair to your workspace without committing to a full build project.

I do need to be honest about the challenges. The pieces are very small, and working with them requires good eyesight and steady hands. This is not a good choice for children or anyone with vision issues or limited dexterity. Some of the tabs are fragile and can bend or break if you are not careful. Take your time, use good lighting, and have tweezers ready.

Who Should Build This Kit

This kit is best for teens and adults who enjoy hands-on craft projects and want something different from traditional plastic models. It makes a great gift for aviation fans who want a display piece without the multi-day commitment of a full model kit. If you enjoy working with your hands and appreciate the satisfaction of piecing something together from flat metal sheets, the Metal Earth Bell X-1 is worth trying.

Assembly Tips and Tools

You will want fine-point tweezers, needle-nose pliers, and good lighting. Clip each piece from the frame as close to the attachment point as possible, then gently bend the tabs using the pliers. Do not rush the process. Working on a light-colored surface makes it easier to see the small pieces, and a magnifying lamp is extremely helpful for the smallest connection points. If a tab breaks, a tiny drop of super glue will hold the joint.

Buying Guide: How to Choose the Right X-Series Model Kits?

Choosing the right model kit comes down to matching your skill level, available time, and display goals with the right product. Here is what our team recommends considering before you buy.

Scale: Finding the Right Size

Scale is the single most important decision you will make. The 1/48 scale kits, like the Tamiya F-16CJ, offer the most detail and are roughly 10 to 14 inches long when finished. They are ideal for display and reward careful building with impressive results. The 1/72 scale is the most popular for aircraft models because it balances detail with compact size. Finished models are typically 6 to 9 inches long, making them easier to store and display in groups. Smaller scales like 1/175 or specialty sizes like 1/54 are best for specific display needs or casual builders who want something compact.

Skill Level: Be Honest With Yourself

If you are new to model building, start with kits that have fewer parts, simpler assembly, and forgiving finishes. The Italeri F-117A and the Atlantis B-52/X-15 are both excellent beginner choices. The Metal Earth Bell X-1 is also beginner-friendly in terms of what you need, but the small piece size requires good dexterity. Intermediate builders should look at the Hasegawa and Academy kits, which offer more detail and slightly more challenging assembly. Advanced builders will get the most satisfaction from the Tamiya 1/48 F-16CJ, which rewards skill and patience with an outstanding finished model.

Material Type: Plastic vs Die-Cast vs Metal Sheets

Traditional plastic injection-molded kits are the most common type and offer the best balance of detail, customization, and build experience. They require glue, paint, and patience, but they give you the most control over the final result. Die-cast models like the NUOTIE F-16D X-62 VISTA are pre-built and ready for display out of the box, making them ideal for collectors who want the look without the work. Metal sheet kits like the Metal Earth Bell X-1 sit somewhere in between, offering a hands-on assembly experience without the need for glue or paint.

Detail Expectations: Panel Lines, Cockpits, and Weapons

If surface detail matters to you, look for kits with recessed panel lines rather than raised ones. Recessed lines are easier to work with during weathering and produce a more realistic result. Cockpit detail varies widely between kits; some, like the Tamiya offerings, include embossed consoles and pilot figures, while others like the Italeri F-117A have minimal cockpit detail. Weapons and ordnance are important for military aircraft display. The Tamiya 1/48 F-16CJ leads the pack here with a full load of missiles, ECM pods, and fuel tanks.

Aftermarket Support and Customization

Some kits benefit greatly from aftermarket accessories like photo-etched detail sets, resin cockpit upgrades, and replacement decal sheets. The Hasegawa F-14A Tomcat, for example, has extensive aftermarket support if you want to super-detail it. Popular aircraft types like the F-16 and F-14 always have strong aftermarket ecosystems. Less common subjects like the X-29A and Sea Harrier have fewer upgrade options, so what you get in the box matters more.

Display vs Build: What Is Your Goal

If you want a display piece for your office or home and do not enjoy the building process, a pre-built die-cast model like the NUOTIE F-16D X-62 VISTA is your best bet. If the building process itself is the reward, then any of the plastic kits in this roundup will give you hours of enjoyment. The kits from Tamiya and Hasegawa are consistently praised for the quality of their build experience, meaning the process of putting them together is as satisfying as the finished result.

FAQ

Final Thoughts on the Best X-31 Model Kits

Finding the best X-31 model kits means sorting through a wide range of scales, skill levels, and building experiences. After testing and comparing 10 kits, our top recommendation goes to the Tamiya 1/48 F-16CJ Fighting Falcon for its unmatched engineering and detail. The Hasegawa F-14A Tomcat delivers outstanding value in 1/72 scale, and the Atlantis B-52 and X-15 combo is a budget-friendly two-in-one kit that is perfect for beginners.

Whether you want a detailed build project, a quick weekend assembly, or a pre-built display piece, there is a kit on this list that fits your needs. Take your time choosing the right scale and skill level for your situation, and enjoy the build. Every kit in this roundup has earned its place, and any one of them will give you a model worth displaying in 2026.