Nova CNC Aluminum TT Style Combat Master Set ( 5.4 size ) for Marui Hicapa GBB Series - Black Features - Limited Japan version - CNC Machined Aluminum Slide & Frame ( Polished ) - CNC Machined Aluminum Outer Barrel ( 5.4 inch Bronze color ) - CNC Steel Recoil Spring Guide Rod x 1 - CNC Aluminum Recoil Spring Plug x 1 - CNC Aluminum Front sight x 1 - CNC Frame Inner Chassis set & Dummy Fire pin - For Airsoft use only - Fit for Tokyo Marui Hi-capa 5.1 Airsoft GBB series