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Old March 20, 2014, 12:47 PM   #1
roval
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curious about sig spring

I've never seen a similar recoil spring where it's multiple wires braided together. Are they all like that and is there a big advantage to the design?
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Old March 21, 2014, 06:22 AM   #2
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This type spring is supposed to last longer. The P-series Sigs I've seen all had this type recoil spring from the factory.
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Old March 21, 2014, 06:41 AM   #3
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it's advantage is supposed to be better performance in true freezing cold.
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Old March 26, 2014, 06:22 PM   #4
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My SIG P250 came with a single wire recoil spring and a steel rod in 12/2013.
I ordered spare recoil springs and they came as flat captured springs on a plastic rod about 1/2 the diameter of the steel rod. They work, the front looks ugly as does the rod with the slide locked back. I ordered a couple of the (now) old springs from TopGun.
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Old March 26, 2014, 06:27 PM   #5
F-111 John
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You'll see those same twisted wire springs used in AK Hammer springs.

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Old March 26, 2014, 09:52 PM   #6
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The twisted springs, they really aren't braided as there isn't a single center wire, are standard in factory Classic P-Series pistols to better control the recoil effects on the slide. The P250 and SP2022 come with flat wire springs.

While I'm a big supporter of Wolff springs for many pistols, I'm been told by the leading SIG gunsmith in the country, also a big fan of Wolff springs, that using the twisted springs does make a difference in the service life of the pistols
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Old March 27, 2014, 10:03 AM   #7
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They seem to work quite well. My W.German P226 from the early 1990's has thousands of rounds thru it without a problem.
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Old March 27, 2014, 05:40 PM   #8
Walt Sherrill
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Quote:
Originally Posted by 9mmepiphany
While I'm a big supporter of Wolff springs for many pistols, I'm been told by the leading SIG gunsmith in the country, also a big fan of Wolff springs, that using the twisted springs does make a difference in the service life of the pistols...
I've heard the same thing, attributed to Bruce Gray, of Gray Guns -- probably the guy you're writing about. Gray (and his staff) probably knows as much about the P-series SIGs as SIG's best people.

(I picked up a used P228 that has had a bunch of Gray Guns' work done to it -- and it's very nice.)
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Old March 27, 2014, 07:01 PM   #9
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Yes, it was Bruce. And yes he does know more about how SIGs wear and function, than even folks at the factory

There is stuff Bruce won't post because he thinks it is unprofessional to run down products and instructors who really don't do any harm.

When he does recommend against using a product in a specific situation, he is really trying to save folks from unnecessary waste or harm to them or their guns
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Old April 2, 2014, 08:22 PM   #10
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It a positive or negative affect on the guns service life?
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Old April 2, 2014, 08:28 PM   #11
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It would be positive or SIG wouldn't use it.

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Old April 2, 2014, 09:37 PM   #12
9mmepiphany
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Originally Posted by astra600 View Post
It a positive or negative affect on the guns service life?
If you are talking about the twisted spring, it prolongs the life of the frame...just as using grease, instead of oil, on the rails does
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Old April 3, 2014, 03:37 PM   #13
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Interesting that SIG has twisted spring, single wire spring and flat spring sprinkled throughout its line.
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Old April 3, 2014, 04:20 PM   #14
9mmepiphany
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Different springs for different applications.

I'm not sure which model you are referring to which uses a single wire spring, but if it is a 1911 style platform, that would answer the question.

The twisted wire is their standard spring for the Classic P-series, they use flat springs to create additional tunnel space to prevent spring lock-up
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Old April 4, 2014, 06:08 PM   #15
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Quote:
I've never seen a similar recoil spring where it's multiple wires braided together.
AKs use them for the hammer spring, my CZ75B in .40S&W uses one for its recoil spring.
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Old April 4, 2014, 06:40 PM   #16
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Quote:
It a positive or negative affect on the guns service life?



Neither actually, if you are a lazy slop who never worries about springs they won't help you a bit. They are very good springs though, better than any of the after market ones available. If you want to know the truth though the mainspring has much more to do with slowing down the slide as it comes back than the recoil spring.
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Old April 4, 2014, 10:05 PM   #17
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The twisted springs do a couple of things for you. The friction of two or three twisted wires rubbing together helps to damp out vibrations and minimize harmonics in the spring, and a pair of really small diameter wires in parallel don't experience as much stress as one larger spring that has the same stiffness.
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