Anyone Know Approx Trigger Pull of PM40?

[garyb]

Hi,
I am hoping someone knows the approximate lb trigger pull of the PM40. If you have a trigger guage and can measure this for me, please post a response. I have a trigger guage that only goes up to 4.5lbs which is not high enough. Thanks a bunch.

[Bawanna]

I don't have a PM40 but my PM45 was just over 5#, as I recall. I measured it when I installed the 5# striker spring and found it not much over to begin with.

Until we get a solid answer I'd guess it's between 5 and 6 someplace.

The 5# spring did help mine but not a whole lot, it had a pretty decent trigger pull and weight to begin with I guess.

[jocko]

karfh will tell u it is between 6.5 and 7+. very few owners here who have a trigger gauge ever get that high of a spring rate.. I have no reason to doubt kahr but again, I have a crapp gauge that is normally onlyt off +- 10# so what do I know.

I have no doubt a striker spring is likea recoil spring, it takes a designed set and poundage drops off, but still well eough to make the bang thing happen.

I installed the 5# striker spring in my PMJ9 from the git go and have over 32K rounds through it, never a lite strike and I have not gauged it but once or twife as my gauges is just not that accurate. Buyt I have no doubt a 5# striker spring from wolffs is lighter than kahrs factorty spring but how much is a debateable thing..

[Ikeo74]

I downloaded the Kahr pamphlet and it states all triggers pull wt at approx. 7.5 lbs.

http://www.kahr.com/PDF/12KahrBrochure.pdf

Go to page 13

[Bawanna]

That must be a worst case scenario. None I've ever held had close to a 7# trigger.

I concur on the predesigned set Jocko mentions as I measured at several intervals after installing my 5# spring and it did improve. We're not talking huge amounts but tiny bits.

I think this is twice in the last hour I've agreed with Jocko, I think I'll go hang myself.

[jocko]

u have stated that a few times. either do it or shut up. u getting like obummer. PROMISDES, PROMISES, PROMISES.. just sayin

[Bawanna]

And the gloves come off and get tossed aside.

[garyb]

Thanks guys. If I am not mistaken, it sounds like the info we have thus far is somewhere between 6.5-7.5lbs for standard factory spring, but some have reduced that amount with spring changes. Making a spring change may be the way for me to go too. If anyone has a trigger guage and a PM40, I'd sure appreciate hearing the actual measured value with a standard factory spring. I am just curious and too cheap to purchase a good digital trigger guage. I have an inexpensive RCBS with a 72 oz (4.5lb) limit. It feels like there are another 3 lbs more to pull, but this is a rough guess which might be consistent with Kahr's value (of 7.5lbs).
I appreciate the feedback from everyone. Hopefully we can pin this down with some actual measurements. Thanks.

[garyb]

I downloaded the Kahr pamphlet and it states all triggers pull wt at approx. 7.5 lbs.

http://www.kahr.com/PDF/12KahrBrochure.pdf (http://www.kahr.com/PDF/12KahrBrochure.pdf)


I went to the site to investigate, started looking at the pictures and forgot why I was there....WOW, the brochure has changed for the better. I also read they have a new "enhanced trigger" which has a shorter pull. Nice to know, but does not help me. And yep, they quote a spec of approx 7.5lbs. Just wonder if anyone has a PM40 that can measure the standard trigger pull. Thanks if you do and nicer looking brochure for Kahr. Kudos for the new photos. I guess I've been in a cave too long.

[jocko]

better have a good gauge though The enhanced trigger is gonna be available onlyt for kahrs that have the external safety 1/8" shorter trigger travel than kahrs elite trigger system. Poundage willbe the same.

[Joe L]

I'll check it later today for you. I have a stock PM40 and a good Lyman trigger gauge. I may even unload the little carry gun first, however.

Joe

[jocko]

Thanks guys. If I am not mistaken, it sounds like the info we have thus far is somewhere between 6.5-7.5lbs for standard factory spring, but some have reduced that amount with spring changes. Making a spring change may be the way for me to go too. If anyone has a trigger guage and a PM40, I'd sure appreciate hearing the actual measured value with a standard factory spring. I am just curious and too cheap to purchase a good digital trigger guage. I have an inexpensive RCBS with a 72 oz (4.5lb) limit. It feels like there are another 3 lbs more to pull, but this is a rough guess which might be consistent with Kahr's value (of 7.5lbs).
I appreciate the feedback from everyone. Hopefully we can pin this down with some actual measurements. Thanks.

unless ur into the smitty stuff, why buy an expensive gauge. It is whatit is, welive with it or wesearch for things that might reduce poundage. One this is for sure if u put the 5# wolffs spring in thegun it certainly is less poundage than a factory kahr spring on it lowest spring setting. Who knows u might be the one person here who actualy gets a kahr and the gun has a true 7.5 spring in it.

I kinda have to think kahr is right for they have sold the nyd k9 with years and it was mandated they have the 7.5# spring in it and u can bet ur sweet ass, nypd checked um...

[Joe L]

Average of five pulls is 5 lb 8 oz on my PM-40. This gun has probably no more than 2k rounds through it but it has stock springs and shoots very well. I shot 50 rounds through it this morning from 15 out to 25 yards, in a gusty wind.

Joe

[Joe L]

GaryB--you can also just hang a 6 lb weight on a coat hanger, support it with the gun aimed straight up, and see if the gun fires. Then try a 5-1/2 lb weight and see if it goes. Don't need anything but a scale to measure the weight.

But, I did it using the fancy gauge and it is 5lb 8 oz, same as when I bought it used.

Joe

[Tinman507]

should probably do that unloaded

9R7IlTHaee8

[MikeyKahr]

Yeah, probably.

[Joe L]

You're welcome, GaryB.
"No living creatures were injured or killed during this test." It was fun, however.
Joe

[OlympicFox]

Mine is 6.01#. That's the average of 20 pulls on a Lyman digital gauge taken after 150 rounds.

Last week I retested it and came up with 5.99# after 437 rounds. So, you can see that wear will lighten the trigger pull - but just barely. ;)

FYI, I also measured our other Kahr's the same day:



K9 ....... 5.19# @ 809 rounds with NYPD trigger
P380 .... 5.75# @ 48 rounds
CM9 ..... 5.78# @ 193 rounds
PM40 .... 5.99# @ 437 rounds
P40 ...... 6.96# @ 72 rounds
PM9 ..... 7.05# @ 0 rounds

[garyb]

You're welcome, GaryB.
I have not been back for awhile... Been busy deer hunting.
Thanks JoeL. Thanks OlympicFox...interesting data. Thanks Everyone. I guess I need to measure mine sometime...it is what it is. Thanks.

[Tilos]

Thanks to OlympicFox and Joe L for taking the time to measure the trigger pull and post the results:yo:

[Joe L]

GaryB--Hunting, that is an acceptable excuse for late reply! 5-6 lbs for a gun with some rounds through it.

Joe

[Ninjatarian]

I have a PM40 and bought a Wolff 5# spring. Went to replace my stock spring and the Wolff spring was longer and more sprung. With a small digital scale and piece or string my trigger measures 7.5# with the Wolff 5# spring. The trigger weight went up! What gives?

EDIT: Just read the invoice, 5# springs are back ordered. They sent me a free standard striker spring as a consolation prize. All well.