Took apart my GA Optimus for cleaning yesterday. Found several pieces of jacket material inside. Tiny one on the inside of the exit cap, 4 on the inside of the first baffle (between the 1st and 2nd baffles). No damage on the baffles or piston, or fixed barrel spacer. Nothing bent, scratched, etc. I used is on G19 with a SilencerCo barrel and Sub2K. Do not know what to think. Ammo used was Speer Lawman in 147gr and Wolf in 115gr. Thoughts? Will take pics tonight.