Springco dual recoil springs 4516

18DAI

18DAI

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Anyone here using the Springco manufactured dual recoil spring replacements for the OEM springs in the 457, 4513TSW, 4516?

What is the reliability like, same as factory? Any spring stacking issues?

Should I go with Springco, or the ISI Flat springs for Glocks with the coils clipped down. I'd like to hear the experiences of those who have used both.

One last question, with my 4516-3 LE Special order, do I need a different guide rod to use the flatwire Glock springs? Thanks! Regards 18DAI
 
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For those compact guns the ISMI 31 coil flatwire runs just fine on the OEM .236" diameter guiderod. Personally, I use the 22# 31 coil spring in all of my compact guns to include my shooter grade Shorty45 mk2 and the "1014" Although depending on what loads you intend to use a lighter spring force might be more suitable, I wouldn't go less than 18#. In my testing I've found the 22# provided me the best results with full power defense loads while still functioning reliably with 185gr midrange wadcutters (that was in 45ACP by the way)

Sprinco sent me some pre-production sets to evaluate back before they were released to market and they worked perfectly in my Shorty and 4516-2. The wire diameter and coil count is not the same as the OEM springs and as a result, at full compression they are a tad shorter then the factory nested set. So even less likely to coil bind, Whereas I did see coil bind in the Shorty with the factory set, not so with the SprinCo set.

Any of the guns equipped originally with the nested spring set p/n's 10866 & 10867 and thus the skinny guiderod will run fine with a flatwire spring and the SprinCo set is a perfectly suitable replacement as well.

Cheers
Bill
 
18, all I can tell you is that when we made contact with Sprinco originally about making the springs, their guy told me that the cryogenic method they used to treat the springs would give them a useful lifetime in the tens of thousands of rounds. That's based on coil springs they'd made for other guns.

I don't think he was puffing up his product to get us to order springs from him. The small production run he made, and the outstanding price he charged, were no profit center for him, and I really think he did it just to help us out at a time when we were concerned about the long-term availability of springs for Third Gen guns -- of which these fit several. Nice guy, and I enjoyed working on this with him, with BMCM's substantial assistance on the technical and measuring end of things.

I have used them in my compact 45s, but I'll never shoot enough rounds through them to ever be able to evaluate the springs' lifetimes!
 
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I've never purchased any of the dual springs from Sprinco before, so I can't comment on that question.

When I corresponded with Sprinco/Alan last, to see if he would be making any 3rd Gen guide rods & single recoil springs, some years ago now, he stated he was unhappy with the "lackluster response" to him "going out on a limb" & making the dual nested springs.

He also said he never got a complete list on the 3rd Gens that could use his springs & only knew of the compact 45s so I sent him the list of (13) models they would work in:

4013TSW
4053TSW
4056TSW
4013 (R4)
4014 (R4)
4040
4053 (R4)
4054 (R4)
4516 (all except -1)
4513TSW
4553TSW
457
457D

His webpage still hasn't been updated with that info.

At that time the S&W factory dual nested springs were still far & few between & I started using the ISMI flat wire springs, BMCM had introduced us to, for different models too. Once the S&W duals became available I forgot about Sprinco unfortunately & forget to recommend them as a source. :o

While I still have the ISMI flat wire springs in several 3rd Gens I did some "home tests" & found the S&W factory duals are stronger than I had originally thought, particularly at full compression. (At initial compression & unlocking the barrel, they're both the same.)

In my 4013(R4), which uses the duals, I measured 3# more resistance at full compression with the S&W dual nested than with a ISMI GLC-22 installed.

And while you certainly won't need it in your 45s, I found in my 1013 using a S&W factory inner spring along with a Wolff 19# spring, as the outer spring, I get even higher initial, & final, compression readings.

Let us know if you try the Sprinco dual springs.

.

PS: You got me curious so I just ordered a set from Sprinco to compare them to the others. Shipping was only $2.95. :)

.
 
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I just took apart a M457 Zanders I bought . It has a dual spring setup . Could one of you that has one post a pic so I can see if this is what I have ?
 
I'll have to remember to order a spare set of springs from Springco tomorrow.

I do have to say that I found navigating the website a bit awkward the first time I ordered from them. Which might be why more people didn't order. Still, manufacturers who will make anything for 3rd Gen guns are few and far between.
 
Five years ago, I didn't know nuffin' about S&W third gen pistols. And it took "somebody" on this thread to introduce me to the 45's (I guess I have 5 or 6 by now). So, I'll be ordering for those that can use these springs. :)
 
Jeppo said:
Five years ago, I didn't know nuffin' about S&W third gen pistols. And it took "somebody" on this thread to introduce me to the 45's (I guess I have 5 or 6 by now). So, I'll be ordering for those that can use these springs. :)
Click to expand...

I know one of your compact 45's has 'em in it already, Jeff. ;)
 
Thanks all for the information! Much appreciated!

I will be ordering a few sets of the Sprinco springs. I recently changed out all the springs in my guns and have very few OEM springs left.

Im looking at a reliable alternative that is more readily available. Thanks again! Regards 18DAI
 
1775usmarine said:
Can the 3913/ compact 9's be replaced with duals?
Click to expand...

The pistols that use the dual nested springs have the skinnier guide rods (.237" dia.) verses the fatter standard diameter (.290") guide rods. That would be the first pre-requisite even if the spring length was compatible, which I haven't checked.

If you want a heavier recoil spring for your 3913 Wolff Gunsprings makes a variety of weights for it.

.
 
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Sprinco Dual Nested springs for 3rd Gens

After a detour to scenic Louisiana (thanks USPS) my order arrived yesterday. Sprinco processed the order promptly (actually did it on the 4th) & shipped it 1st Class USPS with a tracking number, that was emailed to me on the same day.

I pulled out my 4013(R4), which still has a ISMI GLC-22 flat spring in it, & installed the new Sprinco set. No stacking/binding & the slide clearly stopped on the frame abutment, not the spring, when fully rearward.

I re-created my "home test" & found the Sprinco dual spring set measured essentially the same as the S&W dual spring sets do, strength wise.

The springs come in a nice tube with a paper insert. I noticed it had something printed on the inside of the label so I removed it.

There it states that the blue painted end of the spring goes toward the breach, which would be against the guide rod's flange. Measuring each end of the spring there isn't any size difference, like we see on others sometimes, so I don't know why it would matter but I did as they stated.

They also include, with the order, a small tube of gun lube, at no charge.

Looks like a good resource for the dual nested springs.

.

large.jpg


.
 
Thanks for the update, Bluedot! It shows that Sprinco continues to offer an outstanding product at an excellent price and with superior customer service. Your order experience is just as mine was (minus the UPS detour!) when I ordered from them five years ago. Thanks for the pics, too!
 
I had pretty much the same experience with them. Minus the testing and noticing the slip of paper, of curse. :D

The spring set will sit in its tube until I have a need for them.

BLUEDOT37 said:
After a detour to scenic Louisiana (thanks USPS) my order arrived yesterday. Sprinco processed the order promptly (actually did it on the 4th) & shipped it 1st Class USPS with a tracking number, that was emailed to me on the same day.

I pulled out my 4013(R4), which still has a ISMI GLC-22 flat spring in it, & installed the new Sprinco set. No stacking/binding & the slide clearly stopped on the frame abutment, not the spring, when fully rearward.

I re-created my "home test" & found the Sprinco dual spring set measured essentially the same as the S&W dual spring sets do, strength wise.

The springs come in a nice tube with a paper insert. I noticed it had something printed on the inside of the label so I removed it.

There it states that the blue painted end of the spring goes toward the breach, which would be against the guide rod's flange. Measuring each end of the spring there isn't any size difference, like we see on others sometimes, so I don't know why it would matter but I did as they stated.

They also include, with the order, a small tube of gun lube, at no charge.

Looks like a good resource for the dual nested springs.

.

large.jpg


.
Click to expand...
 
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