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  #1  
Old 04-25-2020, 10:53 AM
codefogey codefogey is offline
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Won't fire if holding grip safety too tight

I've got a Tisas 1911 from Turkey. It's new, and has always had this problem.
If I dry fire, with a grip just sufficient to depress the grip safety, it fires just fine.
But for live fire, when I have a really firm grip, and the safety is as depressed as possible, the gun won't fire. I find that if I relax my grip just a slight bit, then it will fire. But then it's not as controllable as I want. And it's very difficult to relax my grip when I'm accustomed to always having a very tight grip.

Does this problem sound familiar to anyone?
I realize this might be beyond my ability to fix myself.
thanks
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  #2  
Old 04-25-2020, 12:31 PM
Rwehavinfunyet Rwehavinfunyet is online now
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Grip safety.....

Most likely the extended "arm" of the grip safety is not correctly fitted. The Tisa should have some type of warranty if new; otherwise, it should be checked out by a competent gunsmith that understands the 1911 platform.
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  #3  
Old 04-25-2020, 01:19 PM
Steve in Allentown Steve in Allentown is offline
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Quote:
Originally Posted by codefogey View Post
But for live fire, when I have a really firm grip, and the safety is as depressed as possible, the gun won't fire. I find that if I relax my grip just a slight bit, then it will fire.
I agree with Rwehavinfunyet but just out of curiosity, when you say it won't fire do you mean you can't pull the trigger back enough to allow the pistol to fire?
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  #4  
Old 05-27-2020, 05:14 PM
codefogey codefogey is offline
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won't fire if grip safety too tight

sorry, I couldn't seem to figure out how to get back to my post (it was my first to this site).

Correct, I cannot pull the trigger back far enough for it to fire.
If I adjust my grip so the grip safety is ever-so-much looser, then I can pull the trigger back and fire.
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  #5  
Old 05-27-2020, 05:25 PM
Steve in Allentown Steve in Allentown is offline
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The image below is what Rwehavinfunyet is referring to. The trigger bow is moving in from the left. The dotted blue line is where it will end up. "A" is the surface that will prevent the trigger from moving further back. "B" is the underside of the grip safety arm. If the top of the trigger bow is contacting the "B" area, the trigger will not move far enough to the rear to 'trip the trigger'. If there is contact there, the contact point on the arm should be relieved.


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  #6  
Old 05-27-2020, 06:59 PM
flechero flechero is online now
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Sounds like A in Steve's photo is at or close to 90 degrees from B... which would cause contact again if depressed all the way in, blocking the trigger.
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  #7  
Old 05-27-2020, 07:12 PM
Steve in Allentown Steve in Allentown is offline
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Quote:
Originally Posted by flechero View Post
Sounds like A in Steve's photo is at or close to 90 degrees from B... which would cause contact again if depressed all the way in, blocking the trigger.
I didn't even give a thought to "A" being out of whack. Good observation.
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  #8  
Old 05-28-2020, 06:28 PM
cecannonjr cecannonjr is online now
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You guys sure are helpful. That's an excellent graphic.
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  #9  
Old 05-29-2020, 08:55 AM
1saxman 1saxman is offline
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It has to be surface 'A' since holding the safety down hard brings that surface closer to the trigger bow. As the safety is pressed with more force, surface 'B' rotates higher, so you would see the reverse effect of having to press harder to fire.
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  #10  
Old 05-29-2020, 09:26 AM
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RickB RickB is online now
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If the angle between A and B were wrong, the safety could start to bind on the trigger between those two points.
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  #11  
Old 05-29-2020, 09:59 AM
codefogey codefogey is offline
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Thanks for all your tips. I'll have to get in there and see what's going on.
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Old 05-29-2020, 10:48 AM
jjfitch jjfitch is online now
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Google: "1911, fitting the grip safety to trigger bow clearance"

You can do it!

Smiles,
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Gun Control: Acquire target, align sights, press trigger, only after you have identified your target and what is beyond it and made the decision to shoot!
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  #13  
Old 05-29-2020, 07:10 PM
codefogey codefogey is offline
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PROBLEM SOLVED - won't fire if grip safety too tight

ok, so I watched some videos and took it apart and got the grip safety out to look at.

I wasn't sure about area A vs area B as discussed above, so I looked for any place that had "wear" showing on it. There was an area that showed bright metal, located just to the left of where B's arrowhead is in the drawing.

In the drawing, that area is sort of back set, forming a slight "<" shape.
Mine didn't have that, and the bottom part of the "<" stuck out and showed the wear.

So I used my trusty file on that area, and after a few iterations (can't put material back on!), everything worked as it should.

Dry fire is smooth.

Off to the range tomorrow for live testing.

Thanks everyone for your help!
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  #14  
Old 05-30-2020, 10:49 AM
1saxman 1saxman is offline
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The elusive 'Surface C'. LOL
That was good forensics work. That and knowing how to use a file and stone is the basis for this kind of work.
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  #15  
Old 05-30-2020, 12:45 PM
Steve in Allentown Steve in Allentown is offline
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Quote:
Originally Posted by 1saxman View Post
The elusive 'Surface C'.
Surface C is double-secret-probation need-to-know-only. Don't let the cat out of the bag.
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  #16  
Old 05-30-2020, 09:35 PM
dsf dsf is offline
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Quote:
Originally Posted by codefogey View Post
ok, so I watched some videos and took it apart and got the grip safety out to look at.

I wasn't sure about area A vs area B as discussed above, so I looked for any place that had "wear" showing on it. There was an area that showed bright metal, located just to the left of where B's arrowhead is in the drawing.

In the drawing, that area is sort of back set, forming a slight "<" shape.
Mine didn't have that, and the bottom part of the "<" stuck out and showed the wear.

So I used my trusty file on that area, and after a few iterations (can't put material back on!), everything worked as it should.

Dry fire is smooth.

Off to the range tomorrow for live testing.

Thanks everyone for your help!
You may not realize it, but this just started you down the path of "how do I build my own 1911?" territory. Next step - installing a thumb safety and new sear.
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  #17  
Old 05-31-2020, 12:59 PM
NoExpert NoExpert is offline
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You probably know this, but also make sure the trigger resets with the grip safety released.

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