AR BCGs...

[Ikarus1]

Monmouth has the toolcraft for $85 shipped. You can get the NiB one for about $115 shipped.

Bought one of those today. Ordered from MMR and had a tracking number in about 3hrs!
You won't get that kind of shipment by buying from PSA

The nitride bcg should match my nitride coated barrel pretty well also.

FWIW Toolcraft is a DoD contractor, unlike most of what was mentioned here. They also make many OEM parts stamped other brands.
I've heard nothing but good about CPQ/nitride bolts, unlike NiB which eventually wears to a goldish color, and then has no lubricity left. Plus doesn't retain oil AT ALL.

I briefly considered nickle teflon DSarms but I saw these https://www.leitner-wise.com/collections/bolt-carriers/products/enhanced-bolt-carrier-group
and what they use for a coating and decided good ol toolcraft plus nitride for a bit less is a win-win.

One thing is for certain, bolts break and extractors too. The way these things are getting affordable quickly, you should always have a spare BCG

 

[JRHorne]

Yea got my Toolcraft from MMR quick. Put it in my AR pistol and it seems to have fixed all of my cycling problems. Guess the PSA bcg was the real issue.