Awesome, I was just writing 6197 occurs all over the rifle from the 116197 on barrel and receiver to the 97 on the rear most switch on the bolt- (i dont know what this piece is called, the 6197 BU on the lever, and i just noticed a 197 when i removed the scope. Thanks again guys. i feel closer to this piece and consequently the men that proceeded it.
Sincerely

Your first Amendment won't protect itself.
-me