PrestigeArms Posted June 13, 2021 Report Share Posted June 13, 2021 (edited) Hello, My first time posting here. I'm a manufacturer in Tempe, AZ and I recently took in 2 factory ump 45s. I don't have much experience with this platform and I'm getting consistent malfunctions in each gun. The round will feed and get stuck vertically and the bolt will close on it - see pictures. Sometimes, this will happen every three rounds, other times, I can make it through an entire magazine with no issues. At first, I thought this might have been a magazine issue with a particular magazine, but it happens on all eight factory magazines I have. Using Magtech Sport 45 ACP AUTO Ammo 230 Grain FMJ and would like to stay with that if possible. Any advice would be appreciated. https://pasteboard.co/K6l3AB5.jpg https://pasteboard.co/K6l4two.jpg https://pasteboard.co/K6l4Qij.jpg Edited June 13, 2021 by PrestigeArms Quote Link to comment Share on other sites More sharing options...
Spartan Posted June 13, 2021 Report Share Posted June 13, 2021 Try these and let us know. Clean chamber and replace recoil spring. Quote Link to comment Share on other sites More sharing options...
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