Items Available For Purchase Today Object reference not set to an instance of an object. See All Osprey Defense AR15 M16 Gas-Piston Conversion Kit For Sale from: Rourke | Positive feedback: 100% View | Verified Seller | 206 Completed Sales View Sellers Items Osprey Defense AR15 M16 Gas-Piston Conversion Kit For Sale from: Rourke | Positive feedback: 100% View | Verified Seller | 206 Completed Sales View Sellers Items Rourke Seller Since: Feb. 2005 Identity Verified ( Mesa , AZ ) This seller is NOT an FFL City: Mesa State: AZ SOLD - $220.00 Shipping: $20.00 Accepted Payment Methods: Returns: No Returns Description: Osprey Defense AR15 M16 Gas-Piston Conversion Kit for M4/Carbine. Fits carbine length AR15/M16/M4 Rifles with barrels 11.5 to 16" and barrel diameter no greater than 1.00" This is one slick and easy to install kit with unique piston arrangement. Please email all questions. Payment via Postal Money Order ONLY! $20 Shipping to continental U.S.A. where legal. NOT available to California. Condition: New In Box Item #: 914278414 Location: AZ Trades Accepted: NO TRADES! Share: Shipping Notes: $20 Items You've Viewed Recently Osprey Defense AR15 M16 Gas-Piston Conve... $220.00 SELLER: Rourke Add To Cart