Midwest Industries MI-BCG-556EH Enhanced Black Nitride Bolt Carrier Group

Midwest Industries

MPN:: MWI-MI-BCG-556EH
UPC:: 812102033554

$183.70

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Description

.225/5.56 NATO AR15/M16 Full Auto BCG. Black Nitride Finish.

Features:

Engineered to reduce carrier tilt and friction inside upper receiver
Materials, tolerances, and coatings are used to meet or exceed milspec standards
9310 Hardened Bolt, Shot peened
8620 Billet machined and hardened carrier
4130 steel gas key -- Grade 8 hardware with proper staking methods