This Proline Airsoft Carbine features a semi-auto gas blow-back system with realistic action that closely mimics that of a real weapon. A sturdy construction providing a satisfying experience during handling and shooting. Optional CO2 magazine for more power. A full length top rail allows mounting of any type of aiming device, detachable front and rear flip-up sights with fiber optic illumination are included. Side and bottom rails for attaching tactical equipment, making it a perfectly usable gun for skirmishes and CQB.