Why do some revolvers have a trigger stop...

jrandyh

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I was looking at 3 blue 19's I have both 4 inch and 2.5. They all have a piece of metal coming out of the frame behind the trigger. I would call it a trigger stop. I noticed it on two out of 3 Nickel 19's. All are P&R I also saw it on two 6 inch 586. Didn't see it on any of my SS guns or my 4 inch 586 which is a 94 model. Anybody know why it's on some and not others?
JR
 
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A trigger stop at its simplest is just a screw that can be adjusted to stop the trigger movement just after the sear releases. For precision single-action shooting like bullseye, it is just one more refinement to aid precise hits.

A trigger stop that can prevent the gun from firing if out of adjustment is the last thing you want on a defense, LE, or action pistol competition revolver. I fire revolvers double action when shooting in IDPA and the "bullseye" on the target is 8" across.
 
I have always shot DA. My 19 has at least 50,000 through it and never given me a problem with the piece. I had to qualify out to 50 yards DA. I also used the gun In some service revolver matchs that were out to 50 yards DA only.
JR
 
Anybody know why it's on some and not others?

Trigger stops will frequently be installed on guns meant for target shooting, and/or guns with longer barrels. Though often times there seems to be no rhyme or reason as to the guns they will be installed on. Such as plain Jane service revolvers. Most Law Enforcement agencies removed the stops as a matter of routine.

At one point in the '80's S&W was on a real trigger stop "kick". I'd say during that era something like one in ten revolvers shipped had the stop. S&W has gone away from TS's in more recent years. Now days you typically will only see trigger stops on Performance Center guns, and then it's a threaded screw mounted on the the trigger itself, instead of the old style internal trigger stop that required the removal of the side plate to adjust.
 
I have always shot DA. My 19 has at least 50,000 through it and never given me a problem with the piece. I had to qualify out to 50 yards DA. I also used the gun In some service revolver matchs that were out to 50 yards DA only.
JR

And this reply relates to trigger stops how??
 
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I have found that my quality Smith and Wesson revolvers have all had excellent triggers as built. None had trigger stop adjustment screws that I knew of. I do know that stops are added to the Ruger MKx series to both reduce travel on the front end and to limit the pull on the backend.

This is done to improve the standard 'lawyer' trigger.
 
I have an L frame built for competition. The trigger stop has a detent ball in it. It allows you to pause your trigger press (basically in a SA mode) momentarily before you shoot. With practice, you can find the pause spot quickly, settle your sights and squeeze off a light trigger pull
 
I have always wondered why some had them, some didn’t, and why some weren’t even cut for the trigger stop. Just like the OP, my 2.5” 19 has one in place and is the best shooter I have.

I guess they were the internal lock of the day; it’s not a problem until it is a problem.
 
Starting with the Masterpiece line in 1946, all K frame guns with adjustable sights had the trigger stop-

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It is adjustable. It is possible to move it into a position that will NOT let the trigger release the hammer. It is held in position by a screw under the sideplate:


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I THINK it was in the 80s, but it MAY have been the late 70s that a story started circulating that a trigger stop came loose on a cop's gun and moved into a position that would NOT let the gun fire and the cop got killed in a gunfight. I do not know if that is truth or rumor, but I DO know that many PDs started removing the trigger stops from duty weapons. S&W recommended doing so.


Not long after that, I do know for a fact that 38 and 357 K frames started shipping WITHOUT trigger stops. They still had the slot for the stop, but it was not included with the gun. Instead, you got this piece of paper:

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I think the Mod 17 and 18 still shipped with the Trigger Stop. Probably the Mod 14s also.

Sorry, but my knowledge of more modern guns is pretty light, so I can't tell you when/IF they were dropped or current status.
 

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I got my 686 back from Smith a couple months ago. I had them do the "master revolver package" on it. It involves polishing the cylinder yoke boss and polishing up the internals, chamfering the charge holes and finally, adding a non adjustable trigger stop. What they did on mine was basically installed a steel roll pin on the inside of the trigger and fit it to contact the frame just at the break, preventing any further movement of the trigger past the break point of the sear. It is intended to aid the shooter by keeping sights on target after shooting.
 
The AGI DVD for S&W revolvers host is Ken Brooks. In this video he relates that while a gunsmith working at S&W, their policy was to remove the trigger stops on any revolvers that came in for repairs. ( of course, bagged and returned to the customer along with the gun)

During a reassembly session, on the DVD, he had a problem replacing the hammer because the the trigger stop was preventing the trigger to be pulled back far enough for the hammer to just drop into place. He said he could force it but instead loosened the screw and moved the stop back a bit.
 
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I have a 629 with the little rod inside the trigger return spring. Very effective and not likely to go out of adjustment. I've had two L frame revolvers at the Mothership for the "Master Revolver Action Package". Both came back with the roll pin trigger stop installed in the backside of the trigger. I figure this is to minimize the chances of it getting out of adjustment. They are also effective and I like them.
 
Handejector did an excellent/description illustration of the trigger stop. It was in the late '70's that our department was notified by Smith & Wesson of the possibility of the trigger stop coming loose and locking up the revolver, although, I never witnessed such a thing. Were were all notified and given opportunity to receive several of the "new" stops to install in our K frame revolvers if we had one. K frame was popular as off duty/back up as our patrolmen carried the M58 .41 mag with detective division authorized to carry 2.5" M19. The old trigger stop was sort of kidney or elongated oval shaped and ribbed on one side to help eliminate slipping. The new stop was sort of the same with exception it had an "arm" coming off the top of one side. Kinda looked like a boomerang with one fat arm and one skinny shorter arm. Lee gave the illustration showing the location of the stop and the screw that holds it in. The screw that holds the stop in is same size/thread as the screw that holds the rear sight leaf in. So, if ever in need of a screw for your rear sight leaf, there it is for an extra.
 
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