Friends-

I am in the process of piecing together an AR-15 in 5.56 NATO. I have a barrel in the works at Krieger. Now I am in the market for a Bolt Carrier Group (BCG). What brand should I be looking for? There seems to be a number available. What is the best value out there?

Thanks in advance!!!

I have a BCM & it works fine.

BCM is the way to go, in my opinion. Also look for a Colt, Spikes Tactical, Daniel Defense, PSA (Palmetto State Armory), or any quality bolt carrier group. Here is what you will want to look for:

-Full Auto Bolt Carrier Group. This has nothing to do with your rifle actually being full auto- it merely means the BCG is a greater mass than a semi-auto BCG and thus is inherently more reliable.
-Carpenter steel bolt, magnetic particle inspected; high-pressure tested. This is quite possibly the most important attribute of the BCG.
-Properly staked gas key. Make sure that metal has been displaced into the screws so there is no chance the screws could back out.

Good luck on your search!

-John