Umarex Walther P99 CO2 Airsoft Pistol Magazine - Black spring airsoft guns The Gamma Core also utilizes

The Gamma Core also utilizes a unique system where the spool and bolt are completely decoupled from each other and where the air that is used to drive the bolt forward is also released down the barrel and not vented into the atmosphere and wasted like in most other systems

Flip-up front and rear sights (rear sight is detachable)

It has a good grip and a nice high dome

177 pellets

Specially designed Weaver-style mount

Umarex Walther P99 CO2 Airsoft Pistol Magazine - Black spring airsoft guns The Gamma Core also utilizesThis 15 round stick type magazine holds 6mm BBs and is made for the Walther P99 CO2 powered airsoft pistol for skirmish and airsoft events. This magazine fits the Walther P99 item number 2262020 from Elite Force and Umarex. Walther is a trademark used under license.