G&P Barrel Lock for Tokyo Marui AEG (TM M16 Series except M16A1,M16A1VN,XM177)

G&P Barrel Lock for Tokyo Marui AEG (TM M16 Series except M16A1,M16A1VN,XM177) Metal Construction Design For Replace the Original Parts More Durable Suitable For Tokyo Marui AEG Rifle