04-24-2020, 05:57 PM
I have a new Aero receiver with the recent 12" GB barrel. I have shot between 45 and 50 rounds. I have not had any feed problems, I am using ASC 10 round mags that I also have used in my other 6.5 Grendel rifle. When I first got the ASC mags I slightly adjusted the lips up a little and also polished the underside of the lips with 600 grit paper on a wood dowel. I had to do this before when I first got my 450 BM rifle. The underside of lips all had burrs on them. There is a tool for adjusting mag lips, I don't have one..