OPENB Posted August 31, 2012 Share Posted August 31, 2012 I have an open SII that the trigger binds up on. It felt like the overtravel screw was set too far, so I backed it out til it was only in by a thread or two. It feels fine with no mags inserted. With one STI mag, the trigger works fine. With another, the trigger binds unless I pull the trigger at the bottom of the trigger guard. The last mag, it feels like the trigger pull goes up a pound or two but does work. I have 7 old style SV mags. They all stick very hard when locked in, do not drop free, and bind the trigger completely. Do I need a new grip, trigger, or both? Anyone else experience this? Link to comment Share on other sites More sharing options...
Rick88 Posted August 31, 2012 Share Posted August 31, 2012 I would first check the grip screws if they are tight your trigger bow might be bent. Just a guess but good place to start. Link to comment Share on other sites More sharing options...
donnyglock Posted August 31, 2012 Share Posted August 31, 2012 Yep. It sounds as though your mag is contacting the trigger bow. I have had this happen to a few non tuned mags. Link to comment Share on other sites More sharing options...
OPENB Posted September 1, 2012 Author Share Posted September 1, 2012 Tried that first, backed the top grip screws a turn each. I'm going to completely tear it apart. It is definitely dragging on the trigger bow. Hope it's just the trigger, they are cheaper than a new grip.. Link to comment Share on other sites More sharing options...
Steve RA Posted September 2, 2012 Share Posted September 2, 2012 Usually it's just a matter of bending the bow back into the proper shape, shouldn't be necessary to replace it. Link to comment Share on other sites More sharing options...
OPENB Posted September 2, 2012 Author Share Posted September 2, 2012 (edited) Took it apart today. There were two problems. The mag catch was out of spec, keeping the mags from dropping free. I replaced it with a spare, and thought I fixed it. Trigger still wouldn't drop the hammer with a mag inserted. I pulled the cmore off so I could get a look down inside the frame, and could see where the mag is binding on the trigger. Where the bow bends around the front corners of the mag tube, the bends are not square, and the bow protrudes into the magwell of the frame, dragging on the corners of the tube. Tomorrow when I have more time, I will strip the frame down and see if I can make those corners more square. Explains why my STI tubes work and the SV's don't. The SV's have more rounded corners, and the STI's are square. If I can't work this trigger out, I guess I will get the SV ITS. Edited September 2, 2012 by OPENB Link to comment Share on other sites More sharing options...
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