Rock River Arms Bolt Carrier Group 223 Carrier Black AR0032BGRP
$185.00
Rock River Arms Bolt Carrier Group 223 Carrier Black AR0032BGRP. 56 bolt carrier group (BCG). Phosphate coated. Full auto cuts. 8620 steel with chrome lined bore. Gas key and bolt is 158 Carpenter steel. Specifications for Rock River Arms Bolt Carrier...