ULTRA SLICK NICKEL BORON COATING ALLOWS SMOOTHER OPERATION WITH LESS LUBRICATION AND EASIER CLEANUP
INCLUDES:
Tags: ar-10 .308/6.5 creedmoor/.243 win/8.6 blk/.277 sig nickel boron bolt carrier group - complete ar-10, creedmoor/.243, win/8.6, blk/.277, sig, nickel, boron, bolt, carrier, group, complete, parts upper