VIPER TECH SR-15 URX II CQB +16 INCH GBB
VIPER TECH SR-15 URX III MOD0 GBB
VIPER TECH SR-15 URX II CARBINE GBB
VIPER TECH SR-16 URX III MOD 1 + 18 INCH GBB
VIPER TECH SR-16 URX III MOD0 GBB
VIPER TECH SR-16 URX III RAS + 16 INCH GBB
Inner Barrel (Copper) 20 Inch|內管 (銅)20吋
Inner Barrel (Copper) 16 Inch|內管 (銅)16吋
Inner Barrel (Copper) 14.5 Inch|內管 (銅)14.5吋
Inner Barrel (Copper) 9 Inch|內管 (銅)9吋
Inner Barrel (Copper) 11.5 Inch|內管 (銅)11.5吋
Gas Tube (CQB Length) | 瓦斯鋼管 (CQB 長度)