Forge Marking

I know that in the grand scheme of things it doesn’t really matter, but it is mostly a curiosity thing. I was going over my BCM upper and noticed the forge marking is one that I have not seen before and it was not listed in the forge markings thread.

It is a square. Anyone know who this is?

It is indeed trivial info. I forget who it stands for, but you’ll find the marking on BCM, and some more recent Colt guns.

Brass Aluminum Forging Enterprises…I think.

I have that same marking on my new spikes upper as well.