Fixing "trigger slap" on a Cobray M-11

[Fobos]

I picked up a S.W.D. Cobray M-11 today and took it right up to the range. I fired 90 rounds without a malfunction. I'd have tested it further if it hadn't beat my trigger finger, then my middle finger, and then my ring finger, until they were all numb. After describing the problem to my buddy, he put a few rounds through it (he "yelped," heh heh...) and described the problem as "trigger slap." It's the first time I've heard the term.

I'd like to get this fixed so that I don't have to wear chainmail gloves everytime I fire the gun. Can anyone describe what is causing the problem or point me in the right direction?

["DoubleAction"]

Fobos; I do not own one of these pistols but I know of some who have. From what I've been told, there is not much you can do but find something that will work to serve as a pad on the trigger. A small piece of hose will work to slide over the trigger. Try using a short piece of windshield washer hose from an automobile.
The Cobray group got alot of attention during the seventies with their counter terrorist camp.

[Fobos]

I ended up researching the topic until about 5 AM... and your tip about padding the trigger seems to be just about the only thing that anyone has tried. But I'm going to take it a few steps further...

One guy said that the cause of the "slap" could be identified by removing the upper receiver and sliding the bolt over the hammer assembly. The "slap" can't necessarily be eliminated when you find the cause, but one might be able to greatly reduce it. He didn't recommend this technique however, because one slip of the hand could cause the bolt to slam home, causing damage to it. I'm going to give this a shot...

I'm also going to alter the exterior portion of the trigger. Being narrow and rounded, the slap affects only a small portion of the finger. By increasing the width of the trigger, and by flattening it across that width, the energy from the slap will be dispersed over a larger surface area on the trigger finger. I need access to welding equipment before I can try this though... so it may be a few weeks before I can give it a shot.

Once I've done all of this, I plan to add a thin layer of dense foam to the front of the trigger and coat it with rubber.

[MLB]

Maybe a "trigger shoe" such as you might find on a target pistol could be adapted.

[Fobos]

None of it worked...

The slap has been reduced a bit... but not enough to make the firearm a pleasant plinker.

Looks like I'm going to sell it...

["DoubleAction"]

Fobos; Good idea. You have far too many nice guns to be wasting your time with one of these.

[Fobos]

DoubleAction said:

You have far too many nice guns to be wasting your time with one of these.

Why thank you, sir. ;D