WE M9A1 GBB CO2 Airsoft Pistol — Tan

The WE M9A1 is a CO2-powered GBB airsoft pistol and a replica of the Beretta M9A1. With an aluminium alloy frame and polymer grips, it accurately reproduces the dimensions and balance of the service pistol adopted by numerous armed forces and law enforcement agencies from 1985 onwards. It is designed for players who practise dynamic airsoft and want a system that responds realistically with every shot.

CO2 feed via a 12 g cartridge housed in the magazine sets this variant apart from the Green Gas version. The higher-pressure propellant produces a noticeably sharper recoil, bringing the firing sensation closer to that of a real firearm. Compared to Green Gas, CO2 delivers more consistent performance at low temperatures — a practical advantage during autumn sessions or in cold indoor fields. That said, using the CO2 magazine in summer at high temperatures is not recommended. The safety selector is ambidextrous, the open slide reduces jams, and the adjustable hop-up lets you tune the trajectory to suit different BB weights.

The trade-off to bear in mind is the one inherent to CO2 versus Green Gas: under the same conditions, CO2 offers more power and consistent cycling in the cold, but becomes harder to manage as temperatures rise and requires a dedicated magazine that is not interchangeable with the Green Gas magazines of the same platform. Anyone planning to use this pistol across environments with significant temperature swings should consider whether running two magazines — one per season — is practical for their needs.

Key points

• CO2 GBB system with sharper recoil compared to Green Gas, for a more realistic firing feel in every airsoft session.
• More stable performance at low temperatures thanks to the higher pressure of CO2, useful for outdoor sessions in cold weather.
• Open slide in aluminium alloy: reduces the risk of jamming and contributes to the overall balance of the replica.
• Ambidextrous safety, faithful to the original M9A1, usable without modification by both left- and right-handed players.
• Adjustable hop-up to match the backspin effect to the BBs in use and the typical engagement distances on the field.
• Tan finish across the entire frame, for those looking for a replica with a distinct look compared to the standard black version.