Airtac HPA Adapter- KJW/ASG KC-02/SSQ22 to M4 - PLUG AND PLAY

Key Features:

• HPA adapter for the KJW KC-02, ASG, and SSQ22 GBB.
• Comes with valve, gas router and feed lips prefitted.
• A BB latch to prevent excess dropped BBs (two max) and simple push mag release on the side of the adapter makes it very easy to change magazines. A lot of work has gone into M4 magazine fitment for this adapter.
• M4 Magazine Conversion: Allows the KC-02 to feed from widely available M4/AR-15 AEG magazines (Mid/High-Cap), drastically increasing capacity.
• HPA Conversion: Converts the KC-02 GBB to run seamlessly on High-Pressure Air (HPA), eliminating cool-down and maximizing FPS consistency.
• Plug and Play Design: Simple and modular installation—replaces the stock magazine for immediate conversion to the HPA/M4 feed system.
• DMR Optimization: Solves the KC-02's primary weaknesses (low capacity and gas cool-down), making it the most reliable semi-auto DMR platform available.
• Durable Construction: Built by Airtac using high-strength SLA/SLS Nylon or CNC materials for a strong, airtight connection and durability.
• Plug-and-play conversion for KJW KC-02 and ASG SSQ22 → M4 HPA systems.
• Prefitted high-flow valve, gas router and feed lips — no gunsmithing for most installs.
• BB latch prevents excessive BB drop (limits to 2 BBs max).
• Side push mag release for fast, intuitive magazine changes.
• Specially tuned geometry for reliable M4 magazine fitment.
• US-style HPA fitting as standard (compatible with most industry hoses & QDs).
• Works with high-flow setups for stable FPS and fast lock-time

Technical Specifications:

• Compatibility: KJW KC-02, ASG SSQ22 
• Interface: M4 HPA quick-disconnect/regulator hose (US-style fitting)
• Recommended Operating Range: 90–140 PSI
• Maximum Safe Pressure: Do not exceed 150 PSI
• Material: CNC machined aluminium / stainless sealing components (supplier spec)
• Seals: Serviceable O-rings (replaceable)
• Finish: Anodised / black 
• Includes: Prefitted valve, gas router, feed lips, BB latch, mag release (adapter body only)

Each adapter ships prefitted with a high-flow valve, gas router and feed lips designed to provide reliable feeding and stable pressure. We’ve engineered a BB-latch system to prevent excess dropped BBs (two max) and added a simple side push mag release for fast, positive magazine changes. M4 magazine fitment has been carefully tuned — a lot of work has gone into the geometry so your M4 mags drop in and lock like OEM.

Dual Solution for Unrivaled DMR Consistency

This adapter resolves the KC-02's two greatest operational weaknesses.

Firstly, it facilitates the external High-Pressure Air (HPA) connection, which guarantees superior FPS stability by completely eliminating the temperature dependency and cool-down effects of Green Gas. Consistency is non-negotiable for a DMR, and HPA perfects it.

Secondly, the adapter allows the rifle to feed from universally available, high-capacity M4 AEG magazines. This provides 100+ rounds of ammunition, enabling sustained semi-automatic fire without the constant, distracting reloads required by the original gas magazines.

Plug and Play Engineering for Flawless Feeding

Built by Airtac using advanced, durable materials, the adapter features a rigid structure designed for a perfect fit in the KC-02 mag well.

The "Plug and Play" design ensures that conversion is fast and easy—simply remove the stock magazine and insert the Airtac unit with the HPA line connected.

This precision engineering guarantees reliable feeding of BBs from the AEG magazine into the KC-02's specialized GBB hop-up unit, crucial for maintaining the rifle's renowned long-range accuracy. This is the mandatory conversion for any serious KC-02 owner.

Critical Safety Warnings 

• DO NOT EXCEED 150 PSI with any airsoft HPA adapter.
• ALWAYS use air regulated by a secondary regulator (e.g., AT200, Wolverine Storm, PolarStar MRS).
• CHECK YOUR PSI at the regulator before connecting air to the adapter.
• NEVER connect the adapter to paintball tanks, CO₂ tanks, Tippmann-style HPA lines, or other non-airsoft plumbing.
• NEVER connect our equipment to Tippmann style air lines or devices not designed for airsoft HPA use.
• After installation, chrono and leak-test the rifle before fielding.
• Use only recommended hoses, fittings and regulators; improper setup can cause catastrophic failure and serious injury.