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Time between replacing major springs?

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Old 04-08-2011, 09:47 PM   #1
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Does Sig, or any of you experienced in Sigs, have a recommended round count in between replacing major springs on a Sig Pxxx series handgun? Just picked up a used Sig P220, was a police trade-in, their armorer cleaned it up before sending it in, but that's it. Round count is unknown. Thanks!
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Old 04-09-2011, 02:56 AM   #2
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A common rule of thumb is every 4-5000 rounds. If round count is not known and suspicions are that it may need new springs I would go ahead and change them out. You can order a spring kit for your particular model from Sig and it includes the necessary springs. I usually keep at least a recoil spring on hand for each of mine.



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Old 04-10-2011, 04:31 PM   #3
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5000 miles = oil change for my car



5000 rounds = spring change for my gun
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Old 04-25-2011, 06:06 AM   #4
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I would add the recommendation to change them about every five years if you shoot regularly but don't track your round count.
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Old 06-08-2011, 04:41 PM   #5
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Found this on SigForum. All credit to them.





[img]http://*************/groupee_common/ver1.3.7.9830/platform_images/blank.gif[/img] Posted February 22, 2009 09:38 AM I believe this may still be of interest (original information from March 2008).



The following is SIG SAUER's current parts replacement schedule (numbers of rounds), with some comments of my own:



Barrel: If the pistol exhibits keyholing or unacceptable accuracy.

Decocking lever spring: 10,000

Extractor: 20,000

Extractor spring: 20,000

Firing pin: 20,000

Firing pin spring: 20,000

Magazine spring: When magazine fails to lock the slide open. *

Recoil spring: 5,000 â€*

Roll pins for breechblock retention (pins, HD): 5000

Safety lock spring: 20,000

Slide catch lever spring: 10,000

Takedown lever: 20,000

Trigger bar spring: 10,000



Mainspring (hammer spring): SIG SAUER evidently makes no formal recommendation about the mainspring, but lbj was told by customer service that guns with 40,000 rounds are still igniting their ammunition with the original spring. If ignition problems do develop and can't be determined to be due to other reasons, the obvious course would be to try a new mainspring.



* I also recommend replacing the magazine spring when ammunition is not held securely. This can occur before slide lock failures.



â€* I had seen an early recommendation here that the recoil spring be replaced after 3000 rounds, and that's what I follow.



For the armorers: SIG considers the extractor used in P220 stainless steel slides to be a "sacrificial" part, and that it should be replaced after it's removed from the slide.

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Old 06-09-2011, 07:26 AM   #6
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Im sure a round count is a good way to maintain your Sig to change springs.



Im of the thought if it works I dont mess with it.



BUT that is why I practice at the range with my carry guns to keep an eye on them



Top Gun Supply is one of the better places to order you Sig Parts from.
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Old 06-09-2011, 01:13 PM   #7
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Just because I'm curious. Assuming the spring isn't actually broken is degradation of performance the only downside of old springs?
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Old 06-09-2011, 02:35 PM   #8
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Quote:
Originally Posted by Matthew Bik View Post
Just because I'm curious. Assuming the spring isn't actually broken is degradation of performance the only downside of old springs?




In a nut shell, yes. I would be more concerned about reliability especially if it were a carry weapon. Degredation of performance = less reliability.
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