sub-2k

Brand new gun. I have the following problems: 1) My front sight post had to be moved 90% to the left side to be on at 17 yards--it wasn't THAT bad until I started trying to shoot steel plates for speed, and then it was annoying. 2) IF I slap my 17rd or 33rd mags in my Gen2 G19 SUB-2K, the...