Bear Creek Arsenal Complete Uppers

[Lastrites]

My only concern is that they show it not as a SAAMI chamber, but as a “Type II chamber”. Based upon a bunch of other posts here, that would seem inferior because of the bolt face depth, right? I’m new to the Grendel (still building my first) so please forgive me if I’m incorrect.

One of the members here did castings of the several bca barrels and reported that they indeed were compound chambers and not straight walled. BCA choose poorly when they decided how to describe their chambers.