alyaspogi Posted September 21, 2007 Report Share Posted September 21, 2007 hello tech guru's need help here i have an issue with my KWA usp with 150%spirng upgrades and high flow valve and after shooting a couple of Bb's suddenly went to shoot in burst mode???????any answers? surely appreciate it thanks Link to post Share on other sites
Romulus Posted September 22, 2007 Report Share Posted September 22, 2007 I had a USPc that was doing this that I had to fix awhile ago. There are two things that you should check. First, is there any wear on the face of the hop-up bucking (from the feed nozzle? Second, is the gun firing BB's full auto or it is just cycling the slide full auto? I found that my problem was that the inner barrel would move around in the outer barrel which meant that the feed nozzle wasn't able to align correctly and thus made the gun fire full auto. My quick fix was to use a wad of paper under the inner barrel/hopup mech so that I was pushed to the top of the outer barrel and couldn't move. No guarantee that we had the same problem but there can't be that many things that make USP's go full auto right? Link to post Share on other sites
alyaspogi Posted September 28, 2007 Author Report Share Posted September 28, 2007 hey thanks for your insight i just solved the problem on mine,,,it seems that the screw that holds the blowback mechanism is slightly loose when i tighten thing up it return to its normal single shot.... Link to post Share on other sites
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