The Dead Air Shim Kit for barrels with 1/2-28 or 5/8-24 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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SureFire HUBFA556BK 5.56mm 1 3/8″x24 Heat Treated 17-4 Stainless Steel Nitride Black
$269.00
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