GETTING MY WHERE TO BUY AMMUNITION FOR TARGET SHOOTING TO WORK

MoCo Acquired a rifle that will take AICS mags. It arrived w/ one particular PMAG10 AC. Thats quite extensive if employing prone (TIL AICS mags are solitary stack.) I want to obtain several 5rd variations. Searching online I notice magpul has new 'Sig Cross' variations w/ a follower that has a bit feed lip within the front to aid if loading singles