AirTac VFC AK74 to M4 HPA Adapter - Plug & Play

Transform your VFC AK74 gas blowback rifle into a highly consistent, all-weather powerhouse with the AirTac VFC AK74 to M4 HPA Adapter. Engineered as a complete plug-and-play conversion solution, this adapter allows you to bypass expensive, heavy gas magazines and tap your rifle directly into an HPA rig while feeding from lightweight, high-capacity M4 AEG magazines—all while maintaining crisp recoil and excellent full-automatic action.

Upgraded Valve Knocker & FPS Consistency:

This updated version features an advanced internal valve knocker equipped with an integrated spring and a moving component. This mechanical upgrade ensures precise striking alignment against the release mechanism, delivering exceptional air volume regulation and maximum FPS consistency shot after shot. To ensure a tight mechanical seal and wobble-free lockup, the kit includes a premium set of magwell shims to adjust for manufacturing tolerances between different magazine brands.

Zero Assembly Required & Recommendations:

The adapter arrives fully assembled and ready for immediate deployment, pre-fitted with an optimal outlet valve, high-flow gas router, and durable feed lips.

• Note on Fitment: Due to real-steel frame tolerances, the VFC AK74m's magazine catch may require minor manual manipulation during the first few insertions until broken in.

• Velocity Tuning: For users operating within the standard $1\text{–}1.3\text{ J}$ indoor/field limits, the use of an NPAS system (specifically the Waldo Customs Crimson VFC NPAS) is highly recommended to properly tune your output.

⚠️ CRITICAL HPA SAFETY RULES:

• DO NOT EXCEED 150 PSI under any circumstances with this adapter.

• ALWAYS USE AIR REGULATED BY A SECONDARY REGULATOR (e.g., AirTac AT200, Wolverine Storm, PolarStar MRS).

• ALWAYS CHECK YOUR PSI on your regulator gauge before connecting the air line to the HPA adapter.

• NEVER connect this equipment directly to unregulated paintball air tanks or $CO_2$ tanks.

• NEVER connect this equipment to a heavy-duty Tippmann-style HPA line.

Technical Specifications:

• Manufacturer: AirTac UK

• Platform Compatibility: VFC AK74 Gas Blowback Rifle (GBBR) Series

• Magazine Compatibility: Fits standard M4 AEG magazines

• Internal Upgrades: Spring-loaded moving valve knocker system

• System Type: Plug and Play HPA Conversion