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The Cry Havoc Tactical QRB (Quick Release Barrel) 1 Pin Upper Receiver Takedown Kit for AR-15 style rifles or pistols. Change calibers in seconds! The QRB allows you to remove the barrel of your rifle or pistol quickly. No drilling or modifications needed!
To purchase the proper kit simply selection the gas tube option that matches up with your barrels gas system length. A kit designed for pistol caliber AR’s that does not include a gas tube is available as well.
Includes Barrel Plate, Receiver Plate, Star Nut, and Receiver Plate alignment Pin.