Hi folks. Great forum. I purchased the P3-AT last week along with the mag extenders. The mag extenders were an interesting adventure in getting together. After much aggravation and telling myself "this can't be right" I checked the forum. Sure enough I wasn't getting the plate seated correctly. After a little more effort it went together fine. I did need to bend the tang a bit more to allow the mag to seat in the gun properly without hanging. I saw on here were someone "ported" the mag well on their gun to help with the seating. That may be my first "mod". Yesterday I took it to the range. I shot about 125 rounds though it. 50 were factory, the rest reloads. I had no FTF and no FTE. What did happened at about the 30th round or so I noticed that the assembly pin was coming out. Now to be fair, I am not sure if this was not more of a case of operator headspace and timing than anything else. I did take the gun apart the night before to wipe it down. I may not have got the pin completely seated upon reassembly. In any case I pushed it back in and didn't have any more problems with it. Anyone else have a problem with the pin migrating out? Overall this gun more than exceeded my expectations. It shoots accurately and is reliable. I love that you can shove it in a pocket and no one is the wiser. Great gun especially for the money.