BCA 5.56 NATO Bolt Carrier Group


The Bear Creek Arsenal Complete M16 Bolt Carrier Group is a quality part for your next build. The full mass M16 pattern 8620 steel bolt carrier has been treated with a super slick salt bath nitride finish for easy cleaning, reduced friction, and a reduced need for lubrication…

In stock

The 9310 steel 5.56 NATO pattern bolt assembly has a durable manganese phosphate finish.  A properly staked gas key and forward assist serrations round out the great features.  To top it off, each BCA bolt carrier group is magnetic particle inspected to give you peace of mind that your carrier group is from from material defects.
Manufacturer:  Bear Creek Arsenal
Platform:  AR15
Caliber(s):  5.56 NATO / .300 BLKOUT
Profile:  Full Mass M16 Full Auto Cut
Bolt Material:  9310 Steel
Bolt Finish:  Manganese Phosphate
Carrier Material:  8620 Steel
Carrier Finish:  Salt Bath Nitride
High Pressure Tested (HPT):  No
Magnetic Particle Inspected (MPI):  Yes
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