Sheared gas key bolts - Anybody run into this before?

[Kain]

Highly doubtful since they don't use those screws and the stakings are nowhere close to what BCM's look like. I was working there in summer of 2012 and marked carriers and bolts were already common place.

Actually I think they were marking them before that since I want to say my first BCM upper and BCG were bought in 2011, but even I ain't sure. But again, I was giving possible options. That said, I don't know shit about the screws, I generally have other details I am more concerned about, of course I by my BCM BCG groups from BCM, with the lone exception being from Rainier, so the screws I defer to someone who knows that shit. Edited prior post for that.

[bullseye]

I have several of BCM's BCG that was bought in 2008--2009, NONE has any laser etching period on them.

E.T.A---I agree with others here-- if Iraqguns says this is NOT a BCM,,,, my confidence is with him.

[Leuthas]

Seen it before. Poor quality BCG; the front screw sheared due to over-torque, as others pointed out, which puts far too much stress on the rear. You might even see damage to the lower receiver.

[titsonritz]

Latest revision I have is 58 in./lbs which is like 4.66 ft./lbs.

Thanks