I have around 1500 rounds on mine. I will check as soon as I get a chance and let you know.
Wyatt's cell number according to Instagram
1-403-816-1640
Sorry, I can't find the email address at the moment
looks like a bit of plastic deformation. Does anything butt up against that area that would put that 45deg angle pattern on it. It's showing both ano wear, and some depression (deformation) which illustrates something being pressed onto that area, as bear in mind this is aluminum not steel, and deformation happens pretty easily with little force. Doesn't look like a crack or any crack propagation.
You might be correct. Its the exact spot where the edge of the BCM MCMR handguard touches the surface now I look carefully. I tapped it into pace with a rubber mallet slowly, as it was tight. Definitely didnt smash it, but its very possible this is mild deformation due to installing the handguard.
Why do people do this? Post a question...find the answer...and then delete everything. Is it done specifically to prevent others from learning something that might be useful? Or is the original question so silly as to be embarrassing?
So OP...
You asked a question, got an answer then just said "#### everybody else they don't need it!"
How classy...



























