FN bolts

**Buncheong** · 02-12-20, 20:17

FN bolts - these gtg?

FFL I sometimes visit in Scottsdale has several bolts in a bag with cage code 3S679 on the bag label - my understanding is that these are FN bolts (dunno for sure).

I could use spare bolts for my Colt 6920s - should these do well? I’m assuming so, but had to ask.

Thanks in advance for any feedback!

**mack7.62** · 02-12-20, 22:25

GTG. All the ones I have seen are marked with a F MPI and the extractor also is marked with a F on the inside.

**prepare** · 02-13-20, 04:30

FN BCG's are made by Azimuth
https://www.azimuthtechnology.com/pr...arrier-groups/

**AAMP84** · 02-13-20, 09:17

Originally Posted by prepare

FN BCG's are made by Azimuth
https://www.azimuthtechnology.com/pr...arrier-groups/

Can you verify that? I always heard that they were made by AO Precision.

**prepare** · 02-13-20, 10:09

Originally Posted by AAMP84

Can you verify that? I always heard that they were made by AO Precision.

No, just info from a industry pro.

**AAMP84** · 02-13-20, 14:55

Originally Posted by prepare

No, just info from a industry pro.

Someone pointed out in another thread (can't remember where) that you can tell an Azimuth bcg by the gas key. The rear of the gas key is rounded/radiased.

**Buncheong** · 02-13-20, 21:05

Thanks much for the feedback, Gentlemen. I very much appreciate it.

**CloneKook** · 02-21-20, 10:24

Originally Posted by Buncheong

FN bolts - these gtg?

FFL I sometimes visit in Scottsdale has several bolts in a bag with cage code 3S679 on the bag label - my understanding is that these are FN bolts (dunno for sure).

I could use spare bolts for my Colt 6920s - should these do well? I’m assuming so, but had to ask.

Thanks in advance for any feedback!

They seem to work good in USMC M4 and M4A1. Never had any major issues.