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For the techier side of the airsoft hobby, there are few things more exciting than seeing a new brand step into the market with genuinely innovative parts and ideas. The unfortunate reality is that most “new” parts try to change things that didn’t need to be changed or attempt to solve a problem that didn’t exist, spare for the nichest of situations. Genuine innovation is hard to crack! For a time, the beloved Tokyo Marui Hi-Capa system’s upgrade market felt this way. New parts were constantly being released, but most were either only cosmetic or failed to make any significant improvement over leading upgrade designs. A well built Hi-Capa could still perform quite well after all... what else could really be improved? With the right tuning and parts, you could create an incredibly gas efficient precision pistol. There’s only so much innovation that can be done before a system plateaus, right?

At the turn of 2024, a new brand called NexxSpeed decided that the Hi-Capa system was nowhere near its technological peak. This aspiring brand develops parts for the most popular airsoft pistols, seeking to push out every inch of reliability and consistency these handguns are capable of. NexxSpeed parts aren’t just another aluminum anodized recolor spare part, but actually have minor impactful improvements over the factory designs. Let’s dive right into a few of NexxSpeed’s part offerings to explore how their parts might be able to soup up your future pistol build!




One of the stock Hi-Capa’s biggest inherent design flaws is its awkwardly angled hopup arm system. Here’s an image of a standard hopup arm taken out from it’s chamber:



It might be difficult to paint a picture of how this part orients itself in your pistol if you haven’t fully disassembled one before, but the end with two dips and a cutout is what applies pressure to your hopup bucking. That pressure both seats your BB in the chamber and applies the backspin necessary for your shots to carry down range farther. If the backspin imparted on a BB is distributed evenly across the top of the round, it will fly straighter. Slight deviations in the pressure of your hopup application can cause your shots to lose consistency at range or, at worst, fully veer right or left. Hence why the traditional hopup arm design isn’t exactly ideal if you’re trying to achieve pinpoint accuracy. Its pressure adjustment system rides entirely on the right hand side of the pistol, in turn skewing its applied pressure to the right. Experienced technicians have combatted this issue by bending the stock hopup arm to better center it’s shot trajectory, but it is a crude fix for something that should be assembled with as much precision as possible.

The Nexxspeed hopup chamber makes this predicament a worry of the past, as it’s TDC (Top Down Center) hopup application system evenly applies backspin on the BB from both the left and right hand sides. This allows your hopup bucking to make a more centered contact with your BB, reducing the overall left/right shot deviation you would normally expect out of an airsoft pistol. Taking it a step further, Nexxspeed also includes grub screws on both axes of the hopup unit that allow you to center the chamber snugly inside your pistol’s frame. By reducing left/right movement inside the pistol’s inner barrel as well, otherwise uncontrollable variables can be held in place to allow you achieve a level of precision otherwise unattainable. I highly recommend this piece!



Even the littlest of details can go a long way. A coworker of mine has a Hi-Capa that he absolutely adores. He’s scoured the airsoft market both local and overseas to find the best parts to perfect his beloved handgun with. But through his extensive use of the pistol, he found that overtime his slide’s cutout for the slide catch began to wear down, no longer consistently locking back on an empty magazine due to wear and tear. It made me wonder: “What if he had just bought the NexxSpeed slide stop from the beginning?” NexxSpeed’s deceptively innovative slide stop integrates Delrin parts at important contact points that reduce metal-on-metal friction, reducing wear accumulated over time. CNC Aluminum grinds against CNC Aluminum, wearing it down over time. However, Delrin is much more naturally friction resistant and thus can extend the lifespan of interacting parts. If you’re looking to use your pistol for a long time and don’t want to eventually bother with parts wearing out, I highly recommend this NexxSpeed slide stop!



Most indoor airsoft fields have a velocity limit of 350 FPS. It’s no surprise that many players try to edge that limit as best as they can to maximize their range and BB speed for every inch of advantage. Unfortunately, the stock Tokyo Marui Hi-Capa comes out of the box a tad short of that goal, typically only shooting around 315 FPS with standard Green Gas. Due to inherent design limitations, raising the velocity of airsoft pistols can be a difficult task. You could invest in a longer, tighter inner barrel, but that’s not always feasible due to the limited outer barrel length. Traditionally, perfecting air seal in the nozzle/piston head region of a pistol was a tricky and seldom fruitful way of raising velocity. Finding parts that marry up better than the stock configuration was difficult without extensive trial and error. I say “traditionally” because the NexxSpeed double o-ring piston head makes sorting out any air leak issues rather trivial. It’s super sealing design takes care to effectively and smoothly trap gas while also providing free nozzle movement works impressively well. I highly recommend this piston head if you’re trying to inch out every FPS you can get on your Hi-Capa!



It’s odd to think just how much a simple metal washer with an o-ring inside it can make me smile. Standard rubber short-stroke buffers have a tendency to wear out and soften over time, which can cause them to fold over themselves and cause unnecessary friction against other parts in the system. When I first saw this product from Nexxspeed, I breathed a sigh of relief to know that innovation is still alive. Since the rubberized part of these short stroke buffers are built into the aluminum washers, they cannot easily escape or “fold over” other buffers in the system. It’s simple, yet genius. This is peak design. I wouldn’t recommend any other short-stroke buffers on the market more than these.

Although many of NexxSpeed’s innovations are small, they do wonders for system reliability and consistency. Here’s a few more awesome parts from them!


This hammer has a unique rubberized nub that reduces wear from your hammer knocking into your pistol frame, increasing the longevity of your frame, hammer, and even your pistol slide!


Removing and installing your guide rod can be one of the most annoying parts of assembling/disassembling a Hi-Capa. This guide rod gives you a little tool to ease that process.


The way NexxSpeed incorporates Delrin into each of its part designs is neat! A harder material isn’t necessarily better!

Innovation is the backbone of airsofts appeal! Reliable high performance parts readily available can lower the hobby’s barrier to entry. It’s not too uncommon for me to hear of newer players dropping the hobby due to their primary breaking down. So long as brands like NexxSpeed show that continuous improvement is still possible, other brands are likely to follow suit. After a time, upgrades like these become the standard, improving quality across the whole market. Looking to upgrade your handgun with a touch of the future? Check out NexxSpeed’s catalog on Evike.com today!