I had to send back a Ruger single action revolver twice, but it was a quick turn around and now works perfect. Out of the box the cylinder was mis-timed. I guess they don't fire a test round anymore.
I just bought a PC9. Put 200 rounds through it this past weekend. I used the Glock adapter and have 10 mags for it. There was at least one mag that would fall out if I didn't really slap that thing in HARD! I should have tossed it to the side so I knew which one it was.
I tried some custom loads in it, less powder and 115 grain bullets, using this gun for Knockdown Steel. Well, some of them did not eject correctly, had some double feeds. Luckily for me I brought "normal" factory ammo which worked perfect.
I checked the rear sight screw, even though I am not using it, and yeah, it was coming loose already. The one that lets you adjust for windage. The other one for elevation was fine, so were the front sight screws.
It is heavy for it's size, but compared to my Saiga-12, it is a flyweight!