problems with kwa usp compact

Discussion in 'Gun Building, Modifications & Repairs' started by averageairsofter, Jul 30, 2012.

  1. averageairsofter

    averageairsofter New Member

    Hey guys, I'm trying to help my friend out here because he got a kwa usp compact, and whenever he shoots it the slide will always lock back like he's out of ammo in the middle of the mag. It has always been like this since he got the gun, and he's done all the normal stuff like cleaning and lubing it as well as checking the whole gun for stuff that could have got in the gun but it still does the same thing. His dad can empty the whole mag without any problems, and he said that his son's trigger pulls are too long and that if he pulls the trigger faster that it wouldn't lock up on him. I tried to fire it and to pull the trigger really quick and to release it right away as soon as it fired but it locked up on me several times as well. Could it be possible that not doing really quick trigger pulls could cause the slide to lock back? Because I've never heard of this happening before and I was considering getting the kwa usp, but now I'm having second thoughts. Thanks in advance for your help.
  2. Thatguyoverthere1111

    Thatguyoverthere1111 New Member

    I think he's pulling the trigger to quick. Make sure you pull it all the way back, then let go. Also, it just sounds like you're running out of bbs. The slide locks back whenever the mag is empty.

  3. Thestig

    Thestig Some say... Supporting Member

    Colorado Springs and Southern California
    The little runner on the side of the mag that lets the gun know when to lock the slide back can also be broken or slightly warped. Check that as well.
  4. theonlyBuster

    theonlyBuster Active Member Lifetime Supporter

    S. Florida
    I've noticed if the gun gets dirt in that little section, or if it's not moving smoothly you get this end result.
    So definitely check the little tab thinggy. That'll cause a world of headaches.