My 2 wosrt were first a p345 bought at a pawn shop.The pistol went back to Ruger twice before finally fixing the feeding problems,Ruger said the magazine disconnect was messed up the first time from dry firing without a magazine in the pistol and the second time they replaced the extractor. and it looked unfired when I purchased.And the second was an HK 4 imported by H&R with 22 conv and nice wooden box with gold plating and tools.My local GS had this for 350 and I really wanted that model Hk for 20 years and when I finally got to shoot it it stovepiped everytime,when i took it apart the reversible firing pin was broken and there was some sort of plastic buffer wedged between barrel and top of slide,thank the maker for Numerich as they had a firing pin.And it seemed to work ok after that.I sold both pistols and thats the 2 I had problems with .