AR-15, M4 & M-16 Gas Piston Semi/Fully Automatic Bolt Carrier
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Part Number: 2060 Black Nitride
Part Number: 3060 Nickel Boron
The Osprey Defense AR Gas Piston Conversion Kits. Piston Kits and Spare parts for Gas-piston system. Converts gun to gas piston system. Mid-length, Carbine, Op-rod, piston chamber, bolt carriers
Lifetime warranty against manufacturers defects. Modifications to parts will void manufacturers warranty.