Originally Posted by
Mustang
I have a PX4 sub-compact and the grind is not noticable (smooth). When I bought my full size .40 and notice the grinding scratch sound when pulling the trigger that first 0-3 mm on the SA mode. I asked Academy to send it back more than a week ago and I called repair center two days ago and they said they haven't received it yet. I also bought another full size 9mm OD green from Academy (for an incredible low price) and I had the same problem but the grinding sound is less than the full size .40 that I asked them to send back. I'll keep you posted when receiving the repair one back. I own 3 PX4s. I love my sub-compact but the two full size disappoint me a little bit.