Matrix M-LOK GBB M4 Gas Blowback Rifle w/ WA System

Matrix M-LOK GBB M4 Gas Blowback Rifle w/ WA System Utilizes the Western Arms gas blowback system ensuring reliable performance with a plethora of aftermarket parts and accessories Injection molded polymer receiver provides rugged durability without the additional weight of a metal receiver Improved gas efficiency, reliable feeding and firing in full auto Adjustable SOPMOD type stock Flat top receiver for mounting accessories 20mm railed MLOK compatible handguard Matrix M-LOK GBB M4 Gas Blowback Rifle w/ WA System Specifications: FPS: 340-380fps Length: 680mm - 760mm Weight: 3300g Inner Barrel: ~280mm ***No warranty on any Matrix Products*****