The Dead Air Shim Kit for barrels with 1/2-28 threads is composed of three different shim thicknesses. The graphic on the packaging details the thicknesses and identifying features of the shims included with the kit. Always place the thickest shim(s) on the barrel first.
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Silencer Co

SilencerCo AC1360 Thread Protector 9mm Luger Black Steel 1/2″-28 tpi AR-Platform
Original price was: $24.00.$20.40Current price is: $20.40.
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