Stainless Steel Emulational Gun Inner Barrel for M4A1, RIS, SR16 + More - Silver (363mm-Length)
Model 363mm Quantity 1 piece(s) per pack Color Silver Material 304 Stainless steel Specification Inner bore diameter: 6.03mm Other Feature Inner bore: precision grind bright and clean there is 4~5 parallel aura as shooting to light; Compatible models: M4A1 RIS SR16 S-SYSTEM SG551 Packing List 1 x Inner barrel