Does not work with aics mags - Black Scorpion Outdoor Gear AR-10, .308, 6.5 Creedmoor, MP10 Magazine Pouch

I purchased this mag pouch to use primarily with PMAG 7.62×51 AC mags, which I use interchangeably for my Sig Cross in 6.5 creedmoor or .308 when swapping out the barrel. The magazines did not fit the pouch. They are too long. And I was unable to adjust even with all the screws backed out. They are just not compatible with the pouch. I then tried the magazines from my Tikka CTR in .308— also no dice. Too thick for the pouch. These pouches only appear to be compatible with the PMAG LR/SR 7.62×51 mags. That's it. Other than that, they appear well made. Although I don't have a use for it now, I'm keeping the mag for future use on another build that will utilize those mags.