Code-8 Extreme Toughness Polycarbonate Piston-Ten Teeth UMP Colt M4A1 10" Short Keymod

Colt M4A1 10" Short Keymod Full Metal AEGComes with:-8

Some major notable improvements are the custom frame and polymer grips which accepts double stack magazines while at the same time reducing overall weight

KJW M9 24rds Magazine / Compatible with Marui 92F

Fixed front sight

T4E SPARE MAGAZINE FOR UMAREX Walther PPQ M2 / LE

Code-8 Extreme Toughness Polycarbonate Piston-Ten Teeth UMP Colt M4A1 10" Short KeymodDescription: Code 8 Extreme Toughness Polycarbonate Piston Ten Teeth Specifications: High durable and light weight nylon fiber. The sides of thi8s piston are added oil grooves to increase the smoothness and to decrease the friction when piston operates inside a gearbox. Ten heat treated steel teeth for ultra shock absorbing purpose.