https://midstatefirearms.com/product/saleblack-nitride-m16-ar15-bolt-carrier-group-bcg/

shipping available

Complete Black Nitride / Melonite Bolt Carrier Group. Smooth & Protective Nitride finish

Full Auto M16 Carrier

5.56/223, also compatible with .350 Legend

• M16 Carrier-8620 steel
• Bolt-9310 steel
• MPI Tested
• Shot Peened
• Upgraded Extractor Spring with o-ring
• Properly staked gas key

Made in the USA

Note: may have slight blemishes, etc. we inspect these, check headspace with a good barrel, and test fire occasionally, so you may see brass marks on the bolt face from test firing.