AR-15 Gas Piston Conversion System Carbine Osprey Defense .875" Diameter Barrels or Smaller U.S. Made Easy Install

Osprey Defense
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Kit contains everything you need to convert your AR-15/M16/M4 to an ultra reliable gas piston operated gun, including our unique solid billet bolt carrier, piston, piston chamber, operating rod and custom high heat handguards. If you can clean your rifle, you are perfectly able to install this kit in your rifle in minutes.

Specifications and Features
For .875" Diameter barrels or smaller
Increased reliability
Semi-Auto or Full-Auto
For Calibers 5.45x39, 5.56, 7.62x39, 6.5, 6.8
Suppressed or Unsuppressed
True drop in solution
No permanent gun modifications
No valve screws or springs
5 year warranty