Great BCG option for your 9mm Ar build. Hybrid nitride 9mm AR-15 BCG
- Complete 9mm Bolt Carrier Group for Ar15
- Ramped for standard hammer, cut for Glock mags
- Nitride / Melonite low friction durable finish.
- Compatible with Glock and Colt magazines.
Colt AR-15 9mm mags for sale may need a heavier buffer in your lower for reliability & softer cycling
- 8620 Single Piece Bolt
- 9mm
- Blacknitride+™ by H&M
- Heat Treated
- AR15 Style Extractor
- 17-4 Stainless Steel Firing Pin with Spring
- Functions with all AR15 Style PCC Systems Including:
- Glock Style Magazine
- Colt Style Magazine
- Endomag
- Full Auto Compatible
- 100% American Made
sound of freedom – This was a great set up. I loved being able to customize the set up. Only issue I had was my own fault as a newb to building these. I used a heavy barrel in a slim hand guard. It makes adding attachments tough with clearances. Hoping someday to also get an AR10 from here.
Used this for a 9mm pistol build. Great price and zero problems so far.
BCG shipped without the firing pin spring. I contacted MSF about it, and they walked me through the troubleshooting process, but never sent a replacement spring or contacted me again after diagnosingthe issue. I was able to purchase a replacement from another vendor, and it runs fine now.