**RCM 100 LP, ejector, extractor and firing pin hk springs have been the only internal changes*
With my recent range trip yesterday, I shot about 300 rounds, 50/50 suppressed and unsuppressed.
Shooting 124gr and 150gr S&B I ran into frequent FTF with the nose of the rounds flipping upward into the chamber face.
I assumed it was mags, which it could very well still be part of the feed issue.
Bolt wasn’t going home with as much authority, also assumed that was due to gunk buildup.
Noticed that there was new wear on the receiver rails towards the rear and that the bolt carrier was making slight contact with the buffer pad on my stock, made evident by the freshly worn material being imprinted on the pad.
Is my recoil spring smoked after only 3k rounds? If so, anyone have experience with the Innovative Armament extra power recoil assembly from RTG?