Building the VFC AK105 With Real-Steel KPYK Parts — What Fits and What Doesn’t

The VFC AK105 gas blowback platform is one of the most interesting AK options in airsoft right now — and not just because of how it shoots. What makes it compelling is that VFC builds nearly all of their replicas in real-steel spec, which means real-steel furniture from companies like KPYK actually fits. That’s the premise of this build, and it’s worth understanding in detail before you start spending money on parts.

Based on the video I’m Building a Custom VFC AK105 — With REAL KPYK Parts (3,668 views, published July 7, 2026).

The Platform: VFC AK105 GBBR

VFC released the AK105 in two versions: a tactical variant with an M-LOK handguard, different grip, and different stock, and a stock version with the classic AK furniture. For this build, the stock version was the starting point — the plan was always to strip it down and rebuild it with aftermarket parts, not keep the out-of-box configuration.

If you’ve handled the VFC AKS-74U (the compact AK variant with the wood handguard), the AK105 will feel familiar. It’s a more full-size carbine-length AK, and according to KPYK, the real-steel AK-105 is used by Russian special forces — making it a relatively rare and sought-after platform even in the real-steel world.

KPYK: Real-Steel Parts on an Airsoft Platform

KPYK (written in English, pronounced roughly like “Crook”) is a Ukrainian company that builds real-steel AK furniture. These are not airsoft repro parts — they’re manufactured for actual firearms and priced accordingly. Slightly more expensive than typical airsoft repro furniture, but built to a higher standard because they have to withstand real recoil and real use.

The critical detail: because VFC builds their GBBRs in real-steel spec, KPYK’s handguards, rails, grips, and accessories fit the AK105 without modification in most cases. This is not guaranteed with every airsoft AK on the market, but it works here.

For this build, KPYK provided a discount code (20% off) as part of a collaboration. Full disclosure noted in the video.

The Parts List

The build went with an OD green color scheme — a departure from the FDE/tan green used on the previous AKS-74U build. The specific KPYK parts installed:

• KPYK M-LOK handguard (OD green, cerakoted) — replaces the stock AK handguard and gas tube cover
• KPYK top rail (OD green, cerakoted) — replaces the Midwest Industries QD rail that was temporarily mounted
• KPYK pistol grip (OD green) — replaces the Magpul grip that came on the rifle
• KPYK finger stop (black) — two-tone accent against the green rail
• KPYK QD sling mount (black) — side-mount QD point on the handguard

The cerakoted finish on the KPYK parts is worth noting — it’s not a rattle-can job. The texture and color consistency are what you’d expect from a real-steel manufacturer, because that’s exactly what it is.

Installation: What You Need to Know

If you’ve worked on AR platforms, AK furniture swaps are a different experience. AKs are notorious for requiring fitting — filing, adjusting, and sometimes forcing parts into place. This build was no exception.

Handguard Removal

The stock AK handguard comes off by first removing the bolt at the rear of the receiver, then rotating the retaining lever at the front of the handguard. The top half of the handguard lifts off after the lever is rotated to the correct position. There’s a leaf spring and gas block cover that also need to come off before the KPYK rail goes on.

The KPYK Rail Install

The KPYK handguard replaces both the upper and lower portions of the stock handguard. It indexes on the gas block and locks down with hardware. The fit on the VFC AK105 was tight but workable — no permanent modification was needed, though some patience and finesse were required.

Top Rail

The Midwest Industries QD rail that was temporarily mounted came off in favor of the KPYK top rail. The KPYK rail matches the handguard in color and provides a continuous top surface for optic mounting. The Midwest Industries rail is excellent (and expensive), but the all-KPYK aesthetic was the goal.

Pistol Grip and Accessories

The KPYK pistol grip replaces the Magpul unit. Personal preference plays a big role here — the Magpul grip is comfortable and familiar, but the KPYK grip completes the build’s visual theme. The finger stop and QD mount are functional additions that round out the handguard without adding unnecessary bulk.

The Real-Steel Context: AK-105s in Ukraine

One of the more interesting details from this build came directly from KPYK. In their messages about the AK-105, they shared context about the platform’s role in the ongoing conflict:

The AK-105s that appear in Ukrainian arsenals are rare captured rifles, taken from higher-echelon Russian special forces units. They’re arguably more rare than VSS rifles. On the Ukrainian side, modified weapons are far more common — soldiers invest personal funds and effort into upgrading their equipment. On the Russian side, discipline constraints and lack of personal investment mean most rifles remain bone-stock AK-74s with maybe a red dot added.

This isn’t just trivia — it’s why KPYK builds what they build. Their parts are designed for people who need their equipment to work in real conditions, and that engineering standard translates directly to the airsoft market when the specs align.

What’s Next for This Build

The build as shown is not complete. Additional KPYK parts are on order (sold out at the time of filming), and there’s a known wobble issue with the stock adapter that will be addressed with electrician’s tape on the contact surface — the same fix used on the AKS-74U build. A second stock adapter is also on order from Action Airsoft.

The folding stock mechanism works with the KPYK furniture, though the finger stop interferes with the fire selector when the stock is folded — a minor ergonomic trade-off, not a functional problem.

Should You Build One?

If you already own a VFC AK105 or AKS-74U and want to upgrade the furniture, KPYK is one of the few options that delivers real-steel quality at a price that’s only slightly above airsoft repro parts. The cerakoted finishes are durable, the M-LOK handguard gives you modern accessory mounting, and the whole package looks cohesive when you commit to the full build.

The caveats are real: AK fitting requires patience, some parts may need minor adjustment, and you’re paying real-steel prices for airsoft furniture. But if you’re building a platform you plan to keep and use, the KPYK route gives you something that repro parts simply don’t — the knowledge that every piece on your rifle was engineered for actual use, not just for looks.

Watch the full build video: I’m Building a Custom VFC AK105 — With REAL KPYK Parts

Check out KPYK’s full lineup of AK furniture and accessories at their website (link in the video description).