Bear Creek Arsenal Complete Uppers

[Frontier Gear]

So I called BCA and was only able to talk to the sales lady. I was hoping to talk to someone in the machine shop. After I asked my question, she put me on hold to go find out the answer. When she returned she said that they were "mil-spec". Okay..... that doesn't make any sense whatsoever. She said to email them if I needed more info. So here is what I am sending them. Also, I attached the info-graphs provided by BFT. This is a holiday weekend is I don't expect anything back right away.

Can you please clarify your 6.5 Grendel chamber and bolt specifications? Apparently there is a confusing history with the Grendel bolt design and not all manufactures use the same measurements even though they may use the same terminology. Please clarify what do you mean by "Type II" chamber specifications on your Grendel barrels and bolts?

Is the bolt face depth .136 or .125?

Thank you for your time.
Dan Van Wormer
Frontier Gear