https://midstatefirearms.com/product/left-hand-nickel-boron-bcg-m16-ar15-bolt-carrier-group/
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One Complete Nickel Boron Full Auto Bolt Carrier Group. This BCG is Suited for 5.56/223 & 300 Blackout. The nickel boron coating is excellent, extremely low friction and easy to clean. Designed to eject left out of a Left-Handed Upper Receiver.
- M16 Carrier-8620
- Bolt-9310
- MPI Tested
- Upgraded Extractor Spring with o-ring
- Properly staked gas key
Made in the USA by a quality manufacturer.