Most Affordable Quality Gas Airsoft, Non-Blow Back, C02 powered pistol. The Air Mag C11 BB repeater is compact, high-powered and convenient. C02 powered, this airsoft gun can shoot up to 400fps. – Accessory Rail. Weaver compatible rail on the front triggerguard is ready to take flashlight, laser, etc. – Quick-release 15-round ammo clip.