ISMI or Wolff Springs

kashdaddy · 07-04-2011, 15:22

Which recoil spring do you guys prefer:
(For argument sake, lets assume the spring weight are kept to stock weight)

1) ISMI
2) Wolff
3) Glock factory stock

I personally grew up for the past 20 years on Wolff and have never had any issues with their springs (mags, FP, Recoil). However, I see ISMI springs are heat treated, shot peened, stress relieved, etc. I wonder if any neutral party did any independent testing on both of these spring to compare their properties.
Some have claim that the ISMI can outlast the factory springs, but my question would be by how much (small difference or significant)?

Cruiser1 · 07-04-2011, 16:19

I also have used Wolff in most every gun that I have owned. However in my Glock I only have used Glock springs and they seem to work just fine. I have been staying with origional Glock parts for several different reasons. However when I need to give the springs a change I might just give the Wolff set a try as they have always been very reliable in the past.

silversport · 07-05-2011, 05:08

I have used ISMI recoil springs in my 1911s since about 2002...no issues and have cleared some ills (but a new recoil spring would have cleared those ills as well) and have used Wolff for other uses (smaller springs in several pistols) as well as in 1911 mags...no issues...don't think you can go wrong but my trigger 'smith likes ISMI best for recoil springs so that's what I use...he uses Wolff for the others (their selection is vast) so that's what I use there as well...Wolff is spec'd in several premium magazine springs and that's what I use there too...not one issue with any of them...
Bill

Bill Lumberg · 07-05-2011, 06:58

Unless I was shooting handloads and actually needed a different spring weight, stock glock springs.

Quote:

Originally Posted by kashdaddy

Which recoil spring do you guys prefer:
(For argument sake, lets assume the spring weight are kept to stock weight)

1) ISMI
2) Wolff
3) Glock factory stock

I personally grew up for the past 20 years on Wolff and have never had any issues with their springs (mags, FP, Recoil). However, I see ISMI springs are heat treated, shot peened, stress relieved, etc. I wonder if any neutral party did any independent testing on both of these spring to compare their properties.
Some have claim that the ISMI can outlast the factory springs, but my question would be by how much (small difference or significant)?

JBP55 · 07-05-2011, 06:59

I use ISMI when available. I have no issue with Wolff springs but would have to change all my guide rods in order to use them.

whatsupglock · 07-05-2011, 08:17

I like ismi in my Glocks and Wolff in my 1911's.

kashdaddy · 07-05-2011, 19:55

I think the factory springs are great.

I think the Wolff are Excellent, but they have been around for a while, so I worry if they are using the latest and greatest technology.

I think the ISMI are Excellent as well and I also think they are using a more up-to-date technology in production since they claim their springs are heat treated, shot peened, stress relieved, etc. I really dont know if Wolff springs are made the same way, but they dont seem to advertise it so I doubt it.

If I had to take a wild guess and had to pick one, I would say..............ISMI.

Shasta McNasty · 07-05-2011, 20:14

glock factory oem.

however, if that weren't an option, i would use wolff. ISMI is crap.

kashdaddy · 07-05-2011, 20:32

Can you elaborate on the ISMI being crap??

Quote:

Originally Posted by Shasta McNasty

glock factory oem.
however, if that weren't an option, i would use wolff. ISMI is crap.

Shasta McNasty · 07-05-2011, 21:43

Quote:

Originally Posted by kashdaddy

Can you elaborate on the ISMI being crap??

i ordered 6 mag and recoil ISMI springs for my 1911's and ALL were weaker than the old ones they were meant to replace.

also, if you look on wolff's site, they also sell the "chrome silicon" springs that ISMI does, but they mention they're not as durable as their standard ones, but only made them for a "current market demand".

***mikey357*** · 07-05-2011, 23:34

1. GLOCK
2. ISMI
3. Wolff

...in that order, FWIW....mikey357

silversport · 07-06-2011, 05:26

Quote:

Originally Posted by Shasta McNasty

i ordered 6 mag and recoil ISMI springs for my 1911's and ALL were weaker than the old ones they were meant to replace.

also, if you look on wolff's site, they also sell the "chrome silicon" springs that ISMI does, but they mention they're not as durable as their standard ones, but only made them for a "current market demand".

The Wolff recoil springs must be really good as my 5 1911 pattern pistols have had no issues with ISMI recoil springs since 2002...

Bill

***BuckyP*** · 07-06-2011, 06:15

I guess it depends. I use ISMI recoil springs in my GLOCK because the flat wound springs work better on the plastic guide rod. Ultimately, I prefer Wolf springs by far. When the ISMI springs came out, they were all the rages. I replaced my magazine springs in my STI and had nothing but issues with them. Swapped back to Wolf and everything ran just fine.

I wish someone would make a thicker GLOCK guide rod in plastic so the standard wound springs would work better. (IDPA requires plastic in the GLOCK for SSP, even though the single action only M&P can have a big thick metal guide rod in SSP

-- sorry thread drift).

ronin.45 · 07-06-2011, 06:39

Both companies are well respected. I wouldn't hesitate to use either.

applevalleyjoe · 09-21-2011, 13:33

Quote:

Originally Posted by ronin.45

Both companies are well respected. I wouldn't hesitate to use either.

cciman · 09-21-2011, 19:24

Chevy Ford Chrysler

lotsa opinions, not one with any hard data or facts behind it.

Ultimately makes no difference, since you should change every 5000 rounds anyways, which is probably below the life of any of these springs.