^^^^I'm not an AR fanatic: Probably have the same interest as you. Maybe get it just to have a lower...Almost zero experience with civilian models.
M4 used to aggravate me on "burst"; if the baffles(?) on the bolt were perfectly lined up by "gap" the first attempt at "burst" would be a single shot: A usually useless single shot as your stance, etc was prepared for the "recoil" of a carwash wand. I stripped the cosmoline off mine and kept it 'till the end: The problem became worse over our "life": Made the first shot count in honor of Col. Jeff Cooper's disdain for "spray and pray". I promise I did not have to pray @25m as would a basketball.
Should've bitched more to CATM.
It's importour our military MAIN accepreadi, inclused transgender and Donald Trump hamalafluffted for DEMOCRACY!!!
That is all.