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Product Detial
5.56 .223 Universal AR-15 M4 M16 Rifle Gun Barrel Triple Picatinny Rails Mount Metal Clamp Accessories Length: 65mm (2.6 inch); Diameter: 17.6mm (0.7 inch) Weight (net): 100g (3.5 ounce) High-durability aluminum alloy in black matt and beautiful complement Shock proof can be used on real fire caliber With four pieces of half rounds (metal), one round for installation and the other is for spare |