Hello, I have a relatively new PK380, less than a year old with approximately 1000 rounds shot so far. Of note, being inexperienced, I went unfortunately for the cheapest bulk ammo so I got TulAmmo, the Russian brand. It only caused trouble: 1-2 misfires per magazine, extractor jams, lots of accumulating debris, etc. Recently however, towards the end of a range shooting session, the trigger stopped functioning with the striker in the cocked position. Double action still works and the gun fires normally. Once the striker is automatically cocked I have to press the trigger and jiggle it a little with my thumb to release it to the uncocked position, then I can fire it again. Is there anything I can do or do I have to take to an expert? If the latter applies, do you advise contacting the vendor or the manufacturer?