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 mags will go TOO HIGH, and the bolt will then slam into the mags, and not push the rounds forward. I wondered if I could have re-installed the mag release upside down, but it doesn't seem possible or if it would cause this issue. ** -- I installed the M*Carbo steel feedramp and curved trigger (but the trigger is too short and forces my finger to move up--it lands naturally right on the point--so I'm switching to the flatter trigger).