Bought a box.....only visual difference I can see is the primer on the AG is a silvery color vs brassy color on the customs. Both are XTPs , brass looks the same, both say 1000 fps.
There is a denim/gel video on YouTube of the American Gunner 380 XTPs......looks good 14.5 inches.....Ave about 865 FPS Thru a 2.75 barrel. Have also settled on Sig Sauer 100 grain fmj Elite Performance as practice ammo....no cycle problems with either one.
Have determined I need to tighten the laser in place after every 100 rounds or so on the BG & adjust calibration. No big problem. Love the gun