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Old 08-31-2010, 04:48 PM
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Default 4516-1 take 4516-2 dual recoil springs?

I just got an excellent shape 4516-1 for a great price and need to replace the old single recoil spring with a new one. I know the -2s went to the dual recoil spring and the -1s have the single spring, but could a -1 use the newer -2 springs?
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Old 08-31-2010, 05:13 PM
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Short answer, yeah if you send it to S&W for modification. I sent my 4516-1 back to S&W in the mid 90s and it now takes the dual spring set. I'm not sure if they did a little machining, but they added a washer type plug in the front of the slide where the recoil spring guide pokes through. The diameter of the dual spring guide is much smaller than the one for a single spring.

S&W use to do this modification routinely on 4516-1 pistols returned to them with feeding or ejection issues. Call customer service and tell them you want a call tag for you 4516-1 to send back for the dual spring set modification because you've started to have feeding/ejection issues. Good luck.
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Old 08-31-2010, 05:14 PM
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The dual spring setup requires a smaller dia rod. When S&W repaired single spring units they would use the smaller rod and put a bushing in the slide to fit it. They don't supply the single spring anymore, you would have to get one from Wolff(who doesn't make the dual spring, go figure?). I never had one so modified, but I take it the bushing is pressed in like the muzzle bushing so that the smaller rod doesn't move around. I would call S&W and see if they will modify your gun under warranty.
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Old 08-31-2010, 05:18 PM
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Quote:
Originally Posted by Denver Dick View Post
. . . a washer type plug
Bushing! That's it! Darn it, that's the word I was looking for . . .
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Old 08-31-2010, 06:23 PM
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Thanks for answering the question about the recoil springs. I wasn't aware Wolff still made a single spring for the 4516-1. I guess the next question is it worth getting the pistol modified to use the new springs? I picked up the 4516-1 today and went to the range and shot an AZPOST qualification with it with the result of 250/250. The pistol shot perfect and it even uses the 4506 magazines I carry for my full-size pistol.

I ended up shooting 400 rounds through it, including duty ammo, and it never had one problem. The guy next to me said he didn't know S&W made a metal frame gun.
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Old 09-01-2010, 08:40 PM
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Where can you get a set of springs for the 4516?
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Old 09-01-2010, 10:56 PM
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The 4516-1 springs are at e-gunparts.com and at gunsprings.com. The -2 dual springs are currently at e-gunparts.com and at midwayusa.com ... I ordered a few springs from Numrich Arms (e-gunparts.com) for my -1.
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Old 09-01-2010, 11:27 PM
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You should be able to get a few recoil springs from S&W. Call customer service. As a matter of fact, if you only want one and speak kindly about S&W, they may put one in an envelope as a courtesy.

Here's an excerpt from the current parts list for 4516:

59 108660000 $1.45 X RECOIL SPRING - OUTSIDE
59 108670000 $1.45 X RECOIL SPRING - INSIDE
59 201330000 $1.45 -1 RECOIL SPRING


You want the part no. 201330000


Good luck,
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Old 09-02-2010, 12:17 AM
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You can double check, but I was told a couple of weeks ago that the #20133 was discontinued by S&W.
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Old 09-03-2010, 04:16 PM
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I called S&W last week to order a recoil spring for my 4516-1 and was told it is no longer available from them. They recommended I contact gunsprings.com who had the springs. I plan on sending my gun back to S&W to have the gun set up with the 4516-2 guide rod and recoil springs.
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