Sig Sauer Barrel Taper Cap, 5.56mm/.223 (1/2x28)

Inter-Store Transfer
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Sig Sauer Taper Cap adapter for 5.56 tapered shoulder barrels with 1/2x28 thread pattern(MPX/MCX). Converts the tapered muzzle to a traditional 90 degree shoulder. 

Fits 5.56 NATO (.223) caliber, 1/2-28TPI threaded tapered barrels only.