This accessory end cap provides a tighter bore aperture for use with 5.56mm rounds. The cap is machined from American-made 17-4PH Stainless w/ black nitride finish. Please note this cap does not include provisions for the installation of a wipe as wipes are generally not recommended for supersonic 5.56mm use.
The 5.56MM End Cap weighs 0.89 oz
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