Maple Leaf Crazy Jet Inner Barrel Chamber Set for Hi-Capa Series

An aftermarket upgrade/replacement Inner Barrel and HOP Unit/Rubber for Hi-Capa Series Airsoft Pistols, specifically the Army Armament R601. This awesome package provides you with a Precision 6.02mm Inner Barrel, as well as a HOP Chamber, ML 70° Bucking and 'I-Key Delayer', to improve range, accuracy and precision. The installation of this unit is relatively straightforward, and will be compatible with beginner/experienced techs.