Finally! Got the Larue 7.62 PredatAR running with a Crux suppressor. Had to change the gas tube and install SLR adjustable gas block. Runs flawless now. Prime 175 grain match ammo and 168 grain Berger handloads; no problems with either. Used the Holosun HS510C to run all the function test. I’m impressed with that little optic. Gonna swap it out for US Optics B17 with Tremor3.