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bigdave622
06-21-2013, 11:50 AM
Has anyone replaced their factory striker spring with the Wolff 5 lb spring ?

wyntrout
06-21-2013, 12:06 PM
I did it on 7 Kahrs... from P380 to PM45... no problems. We've NEVER heard of any problems switching to the lower spring rate.

Just review the sections on slide detailing/stripping!

Wynn:)

Glock23
06-21-2013, 01:51 PM
Yep. Not a huge perceivable difference, but it's definitely an improvement.

muggsy
06-21-2013, 02:35 PM
Doing so will reduce the trigger pull weight and will improve accuracy. So far no reduction in reliability through several hundred rounds.

laserfish
06-21-2013, 02:40 PM
Did it on all 3 of mine and I like it. Easy to do and it still feels like I have a nice safe trigger.

Old No7
08-17-2013, 09:18 PM
I recently changed out mine to one of these, and after 100 rounds at the range with NO issues -- I am really liking this mod!

The accuracy of the Kahr (P9 Covert) is unchanged, of course.

But...

The "shootability" of it by me is much improved!!! I am seeing a big difference in group sizes at 7 and 15 yards, and now I'm starting to shoot her more at 25 yards too -- just because I can hit better with her. Confidence in first-shot-hits when drawn and fired quickly is also up, due to the much smoother trigger pull.

I bought a set of 3 springs, as it didn't cost much more to do that, and I will soon change out the springs on my best friends PM9/MA (Mass compliant) and his son's PM9 as well.

This was a GREAT TIP, and I'm really pleased with the results!!! :Amflag2:

Tight groups.

Old No7

LorenzoB
08-17-2013, 11:25 PM
I bought a 10 pack and switched out two of mine. I still have one more to do. And Istill have more for my friends (and my future Kahrs). ;)

It is a nice improvement, but still feels very safe. It also was easy to do.

I have hundreds of rounds with them with no light strikes, and I've never heard anyone else mention light strikes either.

jocko
08-18-2013, 07:29 AM
I did it on 7 Kahrs... from P380 to PM45... no problems. We've NEVER heard of any problems switching to the lower spring rate.

Just review the sections on slide detailing/stripping!

Wynn:)

did u do it with the 380?? Is the springs the same??? I would have not thought of that being so..

jocko
08-18-2013, 07:31 AM
I bought a 10 pack and switched out two of mine. I still have one more to do. And Istill have more for my friends (and my future Kahrs). ;)

It is a nice improvement, but still feels very safe. It also was easy to do.

I have hundreds of rounds with them with no light strikes, and I've never heard anyone else mention light strikes either.

no litestrikesinol ocko'sPMJ9 in over 32K rounds:amflag::amflag: IMO it is a very nice drop in mod that to me has zero disadvantages..:7:

addictedhealer
08-18-2013, 06:57 PM
I'm just curious if we could even go a little less. Maybe get it at 5#s or a tad under.

jocko
08-18-2013, 07:43 PM
I'm just curious if we could even go a little less. Maybe get it at 5#s or a tad under.

that 5#striker will reduce in power just like thge factory spring did. Mine is around 4.5#. don't get greedy, too little could be to much sometimes.

thats what my first girl friend told me anyhow..:Amflag2: In my teen days that would be called a 5" striker..:Amflag2:

addictedhealer
08-18-2013, 08:05 PM
that 5#striker will reduce in power just like thge factory spring did. Mine is around 4.5#. don't get greedy, too little could be to much sometimes.

thats what my first girl friend told me anyhow..:Amflag2: In my teen days that would be called a 5" striker..:Amflag2:

I'm with you, not on the 5" striker thing but on the greedy...:o

Anyway, I need to get a trigger scale and see if mine is that low. Doesn't feel like it is, but that might just be my little girl hands. :cool:

jocko
08-18-2013, 08:09 PM
make sur eits a good scale. My bargain trigger scale is plus or minus 1# + _. about as reliable as heh..

Old No7
11-17-2013, 08:46 PM
Bringing this post back to the top...

With the holiday season coming, this is THE GIFT you should get for yourself and your Kahr!


Doing so will reduce the trigger pull weight and will improve accuracy. So far no reduction in reliability through several hundred rounds.

I've easily put another couple of hundred rounds through my P9 Covert since I changed my spring, and it still works great! So I just did the same to a used CW9 that I picked up for a backup stashed piece here in the house.

You HAVE to do this if you want to hit what you're aiming at!

Tight groups.

Old No7

wyntrout
11-17-2013, 09:31 PM
Jocko, I missed the question about the P380, but all Kahr striker springs are the same size. I put the 5-lb springs in two P380s.

Wynn:)

hardluk1
11-21-2013, 08:06 AM
I have close to 5 years on a 5lb sprinf in a cw9 3 in cm9 and only 10 months on a tp40. I load ammo and have use fed,win,cci and wolf primers and all go bang. My oldest kahr trigger pull is just under 5lb still , newest is 5.5lbs.

jocko
11-21-2013, 03:17 PM
Jocko, I missed the question about the P380, but all Kahr striker springs are the same size. I put the 5-lb springs in two P380s.

Wynn:)

thatis certainly good to hear, I dd not know that. thanks

Jimmy10mm
08-08-2014, 08:02 AM
Not meaning to necro post but bumping this thread for the benefit of anyone else who needs to read it. Wolf springs website has a warning that the spring change is not for duty use so I'm glad to read real world experience that there are no problems with the modification. I need an improvement on the 2003 PM9 trigger in a lightly used piece I just bought a few days ago.

Striker Springs - Reduced Power - W. C. Wolff Company offers reduced power striker springs (firing pin springs) for Kahr pistols rated at 5 pounds. The factory striker spring is 6 pounds. This spring will help improve the trigger pull.
Warning: This spring is for competition use only - not for duty use.

Bawanna
08-08-2014, 09:55 AM
That's just lawyer talk. I have em in my PM45 and my K40, no problems. I used a decent pull gauge and both mine were originally on the low end closer to 5# than 6. It still improved slightly especially after a little time and rounds fired but nothing drastic.

It's like don't pour the hot McDonalds coffee in your lap it might burn you. Duh? Ya know one of those things.

muggsy
08-08-2014, 02:54 PM
That's Wolff CYA should something go wrong, go wrong, go wrong, go wrong. This has been a recorded message.

Underdog
08-11-2014, 05:07 PM
How hard is it to change out the striker spring?

codegeek
08-11-2014, 05:25 PM
Not hard at all. The biggest challenge for me was getting the back plate off.

Sent from my SM-P600 using Tapatalk

Underdog
08-11-2014, 05:30 PM
Thanks Codegeek, I'm ordering one now and will give it a try.

rkenaston
08-15-2014, 05:25 PM
I just changed the spring out of my CM9. I can tell a difference just in dry firing...I'm pumped to take it to the range! It was an easy swap out...

timmy
08-15-2014, 05:47 PM
After 300 rounds with mine installed i can tell the difference