G&P Roller Bolt for Tokyo Marui MWS 6 Postion Buffer Tube (for MWS004)

G&P Roller Bolt for Tokyo Marui MWS 6 Postion Buffer Tube (for MWS004) Aluminum & Copper Construction Roller design for smoother cycling Improved gas efficiency For Tokyo Marui MWS GBB Rifle 6 Position Buffer Tube (MWS004) & 25.5mm Inner Dimension Buffer Tube