625 JM trigger replacement

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1lowlife

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I just bought a 625 JM last weekend.



Love the gun, hate the grooved trigger.
I don't like it holding the gun, I know I'll hate it shooting it.
I ordered a smooth trigger, hoping the finishes somewhat match.

Question, how difficult is it to replace the trigger?
I've never even opened the side plate of a revolver, only got into them recently.

I'm no gunsmith, but I know my way around disassembly and reassembly of a semi handgun.
I've done several Sig DAK to DA/SA and even back to DAK conversions.
Stripped a few Sigs to the frame to send parts off for refinishing.
Converted an HK USPc to LEM.
Stripped a few XD pistols to the frame, and detail strip my Glocks every range trip.
Although the Glocks shouldn't count, it takes less than minute to take down or put together.
I've replaced every Glock grooved 'target' trigger with a smooth faced trigger as well.

Can you guys recommend a video or DVD that will teach me basic S&W revolver info on internals, disassembly, and reassembly?
Or should I just find a competent gunsmith and pay them to do it?
I'd rather do it myself, since I take pride in doing whatever I can on my firearms..


Thanks in advance...1LL
 
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IF you are REALLY luck the trigger will drop in. It does happen. It can't be counted on. The trigger is, and is supposed to be, a fitted part. It can be done with some simple hand tools, including a couple of very good quality files. The Kuhnhausen books are excellent. Also the AGI videos are not bad.
 
Just an idea, but why not smooth the current trigger? My 625 JM, trigger does not bother ME. Have you fired it yet? My 625 has had around 6 different sets of grips on it. I have modified combats on it now.( the finger grooves were mostly eliminated. Pach SB grippers work the best so far. I have Altamont round to square target grips for it also. The best thing have done so far, is to put a Hi-Viz fiber optic front sight on it. Is it brand new, or used? Mine is from 2009. Give us a range report when you get a chance. Bob
 
If I intended to keep the gun I would do what I've done with others, including my current SD and HD guns. Not trusting my skills due to messed-up hands, I'd have a smith polish and radius the trigger face. It's very inexpensive and makes a world of difference to me.

Like you, I really don't like a grooved trigger. Never have.
 
1lowlife, YOU DEFINITELY HAVE THE SKILLS TO DIY A TRIGGER. I WOULD PURCHASE THE KUHNHAUSEN BOOK. IT WOULD BE A GOOD INVESTMENT FOR A MAN WITH YOUR CAPABILITY…..
WHILE I ADMIRE JERRY M. FOR HIS SKILLS AS A PISTOLERO, HIS GUNS DO NOT APPEAL TO ME. I UNDERSTAND THAT THE JM, LIKE THE THUNDER RANCH GUNS, ARE SUPPOSED TO BE "COMBAT" WEAPONS--HENCE THE FIXED SIGHTS. I AM LONG PAST THE DAYS OF MY YOUTH WHERIN I KENTUCKEY WINDAGED MY SHOTS IN ORDER TO SAVE A FEW BUCKS ON THE COST OF A GUN. HAVING BEEN IN ACTUAL COMBAT, I DON'T LIVE IN THE MYTHICAL WORLD WHERE I DRESS FOR THE ZOMBIE APOCALYPSE. THE GRIPS ON THE JM, ARE SLIPPERY AND UGLY, IMHO. I HAVE HEARD THAT THEY ARE PURPOSE BUILT TO SLIDE AROUND IN THE HAND. THAT MAY BE GREAT FOR A GUY LIKE JERRY, BUT A MERE MORTAL LIKE ME NEEDS A FIRM PURCHASE FOR CONTROL. THE GROOVED TRIGGER DOES NOT APPEAR TO BE IN CONCERT WITH THE DESIGN OF THE GUN. OTHER THAN THESE FEATURES, WHICH DON'T APPEAL TO ME--BUT MOST CERTAINLY APPEAL TO OTHERS--I'M SURE THAT THE 625JM IS A GREAT GUN, LIKE ALL THE 625s ARE. I HAVE A MOUNTAIN GUN AND A MODEL OF 1989 THAT ARE SUPERB. I HAVE OFTEN WONDERED IF THE 625 JM IS BUILT TO A DIFFERENT STANDARD OF PERFECTION --LIKE THE CS-1 REVOLVERS, FOR EXAMPLE ? ? ? IN ANY EVENT, BEST OF LUCK WITH YOUR NEW PURCHASE. I HOPE THAT IT BRINGS YOU YEARS OF ENJOYMENT…...
 
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Smooth trigger is the main reason I bought a PC625 instead of the JM. Either way I knew I was going to change the grips so the trigger was the deal breaker.
e.
 
one eye joe said:
1lowlife, YOU DEFINITELY HAVE THE SKILLS TO DIY A TRIGGER. I WOULD PURCHASE THE KUHNHAUSEN BOOK. IT WOULD BE A GOOD INVESTMENT FOR A MAN WITH YOUR CAPABILITY…..
WHILE I ADMIRE JERRY M. FOR HIS SKILLS A PISTOLERO, HIS GUNS DO NOT APPEAL TO ME. I UNDERSTAND THAT THE JM, LIKE THE THUNDER RANCH GUNS, ARE SUPPOSED TO BE "COMBAT" WEAPONS--HENCE THE FIXED SIGHTS. I AM LONG PAST THE DAYS OF MY YOUTH WHERIN I KENTUCKEY WINDAGED MY SHOTS IN ORDER TO SAVE A FEW BUCKS ON THE COST OF A GUN. HAVING BEEN IN ACTUAL COMBAT, I DON'T LIVE IN THE MYTHICAL WORLD WHERE I DRESS FOR THE ZOMBIE APOCALYPSE. THE GRIPS ON THE JM, ARE SLIPPERY AND UGLY, IMHO. I HAVE HEARD THAT THEY ARE PURPOSE BUILT TO SLIDE AROUND IN THE HAND. THAT MAY BE GREAT FOR A GUY LIKE JERRY, BUT A MERE MORTAL LIKE ME NEEDS A FIRM PURCHASE FOR CONTROL. THE GROOVED TRIGGER DOES NOT APPEAR TO BE IN CONCERT WITH THE DESIGN OF THE GUN. OTHER THAN THESE FEATURES, WHICH DON'T APPEAL TO ME--BUT MOST CERTAINLY APPEAL TO OTHERS--I'M SURE THAT THE 625JM IS A GREAT GUN, LIKE ALL THE 625s ARE. I HAVE A MOUNTAIN GUN AND A MODEL OF 1989 THAT ARE SUPERB. I HAVE OFTEN WONDERED IF THE 625 JM IS BUILT TO A DIFFERENT STANDARD OF PERFECTION --LIKE THE CS-1 REVOLVERS, FOR EXAMPLE ? ? ? IN ANY EVENT, BEST OF LUCK WITH YOUR NEW PURCHASE. I HOPE THAT IT BRINGS YOU YEARS OF ENJOYMENT…...
Click to expand...

First off, why are you yelling? Secondly, the JM has an adjustable rear sight and an easily replaceable front sight.

For the OP. There is nothing really "fitted" about the JM trigger, so a new smooth faced trigger should drop right in.
 
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Geez, another one who installs a smooth trigger in a JM... Blasphemy! Miculek didn't set any of those records with smooth triggers...

I've swapped a few triggers (always smooth to grooved) and they don't always drop right in, even if you use the same hand.

I have a few smooth triggers that I don't want and I'd by happy to trade you for that unwanted nasty grooved trigger. PM me if you're interested.

Dave Sinko
 
David Sinko said:
Geez, another one who installs a smooth trigger in a JM... Blasphemy! Miculek didn't set any of those records with smooth triggers...

I've swapped a few triggers (always smooth to grooved) and they don't always drop right in, even if you use the same hand.

I have a few smooth triggers that I don't want and I'd by happy to trade you for that unwanted nasty grooved trigger. PM me if you're interested.

Dave Sinko
Click to expand...

Thanks Dave.
I'm no Miculek, I'll shoot this gun for fun.
I'm not out to break any world records.
This 625 is only the 2nd wheelgun I've owned.

I just don't like the feel of that grooved face trigger.
Don't really care for the looks of it either.
I actually wanted a 3 or 4 inch Model of 1988 or 1989, but wasn't willing to pay $1300 for one on GB.
Came across this one a local show for $800, couldn't pass it up..

I'll be keeping the 'target' or 'speed' trigger, as I keep everything in case I want to return a firearm to stock condition.

To add to the Blasphemy I ordered a Houge N-frame rubber grip.
I'll also be ordering a SDM DX Super Sights fiber optic as soon as I get this 625 to the range and see how it shoots..:rolleyes:
Ordered a BMT Mooner as this is my first moon clip gun...

Again, thank you all for your input..
 
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Co Th G said:
First off, why are you yelling? Secondly, the JM has an adjustable rear sight and an easily replaceable front sight.

For the OP. There is nothing really "fitted" about the JM trigger, so a new smooth faced trigger should drop right in.
Click to expand...
WELL FIRST OFF Co Th G, I'M NOT YELLING. (I REALLY DON'T GET THIS YELLING BS. I DON'T READ CAPS ANY LOUDER THAN LOWER CASE. DOES YOUR COMPUTER SPEAK TO YOU ?) I'M A DISABLED VIET NAM VETERAN. I'M BLIND IN ONE EYE, AND I HAVE GLAUCOMA AND A CATARACT IN MY "GOOD" EYE. I ONLY HAVE USE OF ONE HAND, BECAUSE I'M PARALYZED ON ONE SIDE OF MY BODY, SO I HUNT AND PECK. TYPING IN CAPS HELPS ME TO SEE WHAT I'M DOING. OBVIOUSLY I WAS MISTAKEN ABOUT THE FIXED SIGHT ON THE JM. I ONLY HANDLED A JM ONCE, A LONG TIME AGO. I ONLY HANDLED A THUNDER RANCH, ONCE, A LONG TIME AGO, ALSO. I GUESS I CONFUSED THE TWO, IN MY 73 YEAR OLD RECOLLECTION. A SENIOR MOMENT. I STAND CORRECTED. I'LL HOLD WITH THE REST OF MY POST…...
 
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Cant you just sand it till its comfy with wet sand paper or dremel to take the sharpness out. Finish sand with some 600 gt or so. If you do it without taking it out just double mask all around so no mistakes or grit in the internals.
 
It has been a long time ago that I switched out a trigger in a smith.. Don't recall it being much of a problem.( maybe I was lucky )
Do remember the spring for the cylinder hand being a PITA.

I'm no Miculek either. Could be the reason I don't care for the grooved trigger or JM grips.
Smoothed polished trigger and ugly rubber grips for me.. :D
 
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theoneff said:
Oh that explains the One Eye Joe. You are exempt from any further harassment Sir. if any one does just tell them we said so. Cheers Joe, Ted
Click to expand...

YUP, THAT'S THE ORIGIN OF MY HANDLE. I'M USED TO IT TED, BUT IT IS ANNOYING. WHY ANYONE WOULD CARE WHAT CASE I TYPE IN, BOGGLES MY MIND. SOME PEOPLE GET UPSET. I TELL THEM TO JUST SCROLL PAST MY POSTS. I DON'T MIND IF YOU DON'T WANT TO READ THEM BECAUSE THEY ARE IN CAPS. IN ANY EVENT, THANKS FOR THE SUPPORT…...
 
Don't feel bad about going against Jerry's standards. For the last few years he has been shooting round guns with Hogue X-frame grips. As for the trigger, the new 929 was supposedly built by Jerry himself and unless my eyes deceive me it has a smooth face trigger. A serrated trigger is a great way to start missing shots when going fast.

I have yet to find a trigger that won't drop-in on a S&W made in the last two decades. The quality of the trigger pull will vary between triggers (and how square the parts are), but that doesn't mean it won't function fine.

Remove side-plate, strain screw, mainspring, and rebound slide/spring. Ease the hand back from the window with your fingernail and the trigger will lift right off. Pay attention to how the hand fits on the trigger around the coil spring then pull it off. Old hand goes on the new trigger and reassemble in reverse order. Simple right?

Use the right tools, wear safety glasses, and go slow. Jerry makes a video on gunsmithing S&W revolvers, it's great for those that want to know how they work, and work better.
 
Again, thank you to all that posted...

I'll give it shot.
I'll take some pics before I take it apart.
I'll also watch some videos and look into the Kuhnhauser manual.

I'm very interested in how the gun works.
First time I detail stripped one of my Sigs it was an eye opener.
I realized what every part was and what it's function was.

I thought about modding the stock trigger, but my obsession with being able to return it to stock condition prevents that.
I'm big on having original cases, manuals, and parts for my firearms.
Mainly in case I ever need to sell one of them.
 
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I know this is a year later but I cannot find a replacement hammer or trigger for my 625JM. My single action does not work. Can you help. Thanks
 
Rather that waking up a Zombie Thread it's normally more useful to start a new thread, in this case in the smithing section. However, it happens I also didn't like the serrated trigger on my 625 and wanted a wider smooth trigger. At the time what was available was a 0.400 wide smooth trigger in the blackened finish. Not wanting a mismatch I also installed a standard Service width hammer. Both parts were available from Numrich, so that would be the first place I would suggest you look. I'll also warn you that changing the DA Sear from one hammer to another requires "walking" the sear spring down into the hole in the hammer one coil at a time using two Exacto knives. If you don't know what I mean by "walking" the spring down I would suggest having a gunsmith do the work or spend the money for a complete hammer assembly. Finally because both parts are MIM they were drop in with no fitting required.
 
I am with the OP regarding the grips and grooved trigger. I bought one and kept it for a couple of years. I never felt it belonged in my hand. Tried the set of rubber grips that also came with the gun but still hated the grooves in the trigger.
I sold the gun and never looked back.
 
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