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.223/5.56 LIGHTWEIGHT Bolt Carrier Group- Black Nitride (Made in USA)

Each of our Mil-Spec Bolt Carrier Group Assemblies is made in the U.S.A. and feature full-auto capab..

HMB Bolt Carrier Group - Black Nitride (Made in USA)

HMB Bolt by HM Defense is made in the U.S.A. and the HMB is 100% compatible with Mil-Spec M16 & ..