UNDERSTANDING DIFFERENT CALIBERS OF HANDGUN AMMUNITION FUNDAMENTALS EXPLAINED

MoCo Bought a rifle that usually takes AICS mags. It came w/ one particular PMAG10 AC. Thats pretty extended if working with inclined (TIL AICS mags are solitary stack.) I choose to buy a few 5rd versions. Hunting online I notice magpul has new 'Sig Cross' versions w/ a follower that has just a little feed lip on the entrance that will help if load