WE PolyMAG V3 Airsoft Magazine for M4/16 GBBR Open Bolt — Black

The PolyMAG V3 is the gas magazine for WE AR15 airsoft replicas in M4/16 GBBR Open Bolt configuration. Built from high-resistance polymer, it holds 30 BBs and is designed to run on standard Green Gas.

The V3 version is intended exclusively for WE Open Bolt replicas: the internal geometry and gas feed channel are tuned to that propulsion system. Using it on Closed Bolt variants or on AR15 platforms from other manufacturers can cause gas leaks or feeding failures, because the follower profile and valve seat do not match.

Key points

• Compatible with WE M4/16 GBBR airsoft replicas in Open Bolt configuration, where it ensures correct fire cycling and blowback.
• Capacity of 30 BBs: a realistic round count that reduces reliance on feed springs and supports consistent feeding through to the last shot.
• Impact-resistant polymer construction: the body is lighter than metal and absorbs accidental drops better without transferring deformation to the valve.
• Green Gas feed: the internal reservoir is sized to provide adequate autonomy for the magazine's capacity under favourable ambient temperature conditions.