PC 1911 double taps

[Plinkasaurusrex]

It's doing that itself. I bought it used not too long ago. I replaced the disco and sear with Wilson Combat parts. It still occasionally doubles. What other things can cause this?

 

[RGPM1A]

What is the trigger pull weight? If less than about 2.5 to 3lb it could be you need an ultralight trigger. Another cause could be the leaf spring leg tension on the sear or disconnector is too low. Another cause could be somebody over stoned the hammer hooks and they are too short or the hook angle is wrong.

I would first increase the leaf spring tension on the sear and disconnector equally. Also don't test the gun with more than two rounds in the mag.

 

[nra jim]

I have several different S&W 1911s, a couple of them will simulate a double tab when shooting if I am not careful when shooting them due to the reduced weight of the trigger pull and recoil can cause an unintentional bump fire and it sounds just like double tap or run on. I have to make sure to lift the pad of the finger just enough for reset and it won't happen again.

Sent from my SM-G996U using Tapatalk

 

[Tom S.]

I have several different S&W 1911s, a couple of them will simulate a double tab when shooting if I am not careful when shooting them due to the reduced weight of the trigger pull and recoil can cause an unintentional bump fire and it sounds just like double tap or run on. I have to make sure to lift the pad of the finger just enough for reset and it won't happen again.

Sent from my SM-G996U using Tapatalk

That's my first thought. Double taps that aren't a result of the individual pulling the trigger inadvertently are usually mechanical and full auto, not just double taps.

 

[Plinkasaurusrex]

What is the trigger pull weight? If less than about 2.5 to 3lb it could be you need an ultralight trigger. Another cause could be the leaf spring leg tension on the sear or disconnector is too low. Another cause could be somebody over stoned the hammer hooks and they are too short or the hook angle is wrong.

I would first increase the leaf spring tension on the sear and disconnector equally. Also don't test the gun with more than two rounds in the mag.

Thanks. Spring tension was just under 2 1/2 pounds. I adjusted the spring tension to just over 3 pounds. That worked beautifully. Thanks again.

 

[cracker57]

very sound advice, SAFETY FIRST.

 

[BE Mike]

Thanks. Spring tension was just under 2 1/2 pounds. I adjusted the spring tension to just over 3 pounds. That worked beautifully. Thanks again.

I like 4 lbs. minimum for a carry gun. That's what the military minimum was.

 

[minconrevo]

The 1911 platform is like many semi-auto ones in that out of spec parts will cause unintended consequences. The 1911 has been around for over 100 years and worn out/out of spec parts are too easy to find. Users tend to try to Dremel tool and coarse file parts, resulting in an out of spec and potentially non-running or FA 1911.

The Colt .45 Automatic shop manual by Jerry Kuhnhausen has a wealth of info. Jigs, fixtures, and quality precision measuring equipment are necessary to do some of the operations mentioned in the manual.

Many a 1911 owner is best off getting his pistol to a gunsmith who fully understands the 1911 and has the tools in his gunsmith chest.

 

[minconrevo]

Thanks. Spring tension was just under 2 1/2 pounds. I adjusted the spring tension to just over 3 pounds. That worked beautifully. Thanks again.

One can find side view parts drawings for a stock 1911 sear spring. Sometimes even a lifesize template. Too often a "gunsmith" will bend the spring legs willy-nilly, getting things out of whack. Understand what each leg does before doing bending deviating for the pattern.

Another couple "must replace parts" causes of doubling/FA are a too short sear or disconnector.

 

[BE Mike]

The 1911 platform is like many semi-auto ones in that out of spec parts will cause unintended consequences. The 1911 has been around for over 100 years and worn out/out of spec parts are too easy to find. Users tend to try to Dremel tool and coarse file parts, resulting in an out of spec and potentially non-running or FA 1911.

The Colt .45 Automatic shop manual by Jerry Kuhnhausen has a wealth of info. Jigs, fixtures, and quality precision measuring equipment are necessary to do some of the operations mentioned in the manual.

Many a 1911 owner is best off getting his pistol to a gunsmith who fully understands the 1911 and has the tools in his gunsmith chest.

Not all 1911 pistolsmiths are created equal, just like any other profession.