I recently purchased a new Sig 556 (my second Sig 556). It has the dreaded hump and not-quite-so-refined bolt carrier, but I knew this when I got (partially to see if there is any accuracy difference between it and my old 556 which has no issues, and partially because if nothing else was wrong with the rifle, I could fix it myself). However, this rifle has something else wrong with it. The right rail that the bolt carrier runs down is not entirely welded to the stamped steel upper receiver. That means if I pinch my upper receiver right in front of where the bolt catch is, the rail actually moves about 1/16 of an inch.
Since I picked this up Saturday, I can't contact Sig about it yet. I really need to resist the urge to weld it myself.
Ullie, do you have any thoughts on this?
Since I picked this up Saturday, I can't contact Sig about it yet. I really need to resist the urge to weld it myself.
Ullie, do you have any thoughts on this?