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Freethinker
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This information is specifically for SIG Classic Line pistols, to include the P220, P226, and P229. The original information in this post was from March 2008. I updated it with information from the factory armorer’s manual dated 1 November 2013.

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 †
Roll pins for breechblock retention (pins, HD): 5000 ‡
Safety lock spring: 20,000
Slide catch lever and 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 cannot 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.

† I have seen earlier recommendations here that the recoil spring be replaced after 2500 or 3000 rounds. I replace my recoil springs after 2500 rounds.

‡ This information pertains to the roll pins used to retain the separate breechblocks used in older carbon steel slides. The most recent armorer’s manuals do not mention those older guns. The reason I’ve read for replacing the retaining pins every 5000 rounds is to ensure that the breechblock is secured tightly and firmly in the slide. If any looseness develops (and which may not be detectable by visual inspection), the slide can warp during firing and place additional stress on the frame rails, possibly leading to their early failure.

§ The original information mentioned only the slide catch lever spring. The 2013 manual shows the lever and the spring.

For the armorers: SIG considers the “internal” extractor used in P220 stainless steel slides to be a “sacrificial” part, and recommends that it be replaced after it’s removed from the slide.

NOTE: I do not regularly monitor new posts in this thread, and I therefore recommend that questions pertaining to the subject be posted separately.

This message has been edited. Last edited by: sigfreund,




“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 31002 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
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Thank you Sir.


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Posts: 938 | Location: DFW | Registered: August 20, 2008Reply With QuoteReport This Post
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I got the same info. I really do question the recommendation to swap P220 recoil springs every 5,000 rounds. For years, Sig has recommended 3,500 rounds if you talk to someone on the technical side.


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Posts: 1630 | Location: Northern Mississippi | Registered: November 06, 2000Reply With QuoteReport This Post
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Thanks again! This is good info. I looked through my notes and armorers manual from my class in Sept '06 and couldn't find this information.




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Once more request this thread be stickied?




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Posts: 9183 | Location: Jawjah | Registered: December 30, 2005Reply With QuoteReport This Post
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Thank You Again.
I truly respect your knowledge you share on this forum.
I received your guides last year in April via email from you.
I know you have been working on emergency cleaning guides.
If you have completed it could you please post it here or email it to me.
Any revisions since your last guide?
Email in profile.

Thank You
Roy



Beware the man who only has one gun. He probably knows how to use it! - John Steinbeck
 
Posts: 1215 | Location: Vallejo, CA | Registered: August 18, 2007Reply With QuoteReport This Post
Freethinker
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quote:
Originally posted by ontmark:
I know you have been working on emergency cleaning guides.
If you have completed it could you please post it here or email it to me.


It's mostly completed, but it could use some final tweaking and review/editing.
Thanks for asking about it because that will motivate me to wrap it up. I will e-mail it to you when I do to get your comments. Smile

I've made a couple of very minor modifications to the basic cleaning and maintenance guide but primarily just to clarify a couple of points. If you'd like the most current one, however, I'd be happy to send it to you as well.




“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 31002 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
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Sigfreund, Thanks for posting the recommended maintenance schedule. I have book marked this thread for future reference.

Thank you for kindly sharing your knowledge. Your input to this forum is priceless.


David

P229R 9mm, Nitron, Beavertail Frame, Night Sights, DA/SA, SRT & Short Reach Trigger
 
Posts: 3153 | Location: Plano, Texas | Registered: November 08, 2008Reply With QuoteReport This Post
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quote:
Originally posted by sigfreund:
quote:
Originally posted by ontmark:
I know you have been working on emergency cleaning guides.
If you have completed it could you please post it here or email it to me.


It's mostly completed, but it could use some final tweaking and review/editing.
Thanks for asking about it because that will motivate me to wrap it up. I will e-mail it to you when I do to get your comments. Smile



I've made a couple of very minor modifications to the basic cleaning and maintenance guide but primarily just to clarify a couple of points. If you'd like the most current one, however, I'd be happy to send it to you as well.


I would be honored to receive your guides.
I always appreciate your knowledge you compile and the willingness to share with us.

Thanks
Roy



Beware the man who only has one gun. He probably knows how to use it! - John Steinbeck
 
Posts: 1215 | Location: Vallejo, CA | Registered: August 18, 2007Reply With QuoteReport This Post
Freethinker
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I'll send you the most recent version of the maintenance guide now, Roy, but when I started working on the "field expedient" guide I realized it requires more work than I remembered. Or more to the point, I've thought of some additional issues to cover. I will send it to you, though, when I believe it's about finished to seek your comments.




“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 31002 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
The Good Shepherd
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Up for better visibility -



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Posts: 5092 | Location: troy.ohio.USA | Registered: November 19, 2006Reply With QuoteReport This Post
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im kinda new to the forum and this is very valuable information.... i'm gonna book mark this page tooo... thanks


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Up..Up....For a great post!


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Back to page 1.


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Freethinker
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Again.
 
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Back to the top until this hopefully becomes a 'stickie'......


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Posts: 246 | Location: Colorado | Registered: August 16, 2008Reply With QuoteReport This Post
What would soncorn do?
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Great information, please sticky.

I see that it says replace the barrel if key-holing or unacceptable accuracy. Does anyone have any idea about how many rounds that would take shooting competitively in IDPA, for example?


Every citizen should be a soldier. This was the case with the Greeks and Romans, and must be that of every free state.
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Posts: 1343 | Location: Fort Worth, TX, USA | Registered: October 20, 2002Reply With QuoteReport This Post
Freethinker
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quote:
Originally posted by soncorn:
I see that it says replace the barrel if key-holing or unacceptable accuracy. Does anyone have any idea about how many rounds that would take shooting competitively in IDPA, for example?


I've never encountered a credible report of a SIG barrel's wearing out. I'm sure it can occur, but it must take a long time. Every now and then there's the recurring report of a 357 SIG P229 in Federal service that has over 100,000 rounds through it. Higher velocity cartridges like the 357 SIG tend to cause faster barrel wear.

My belief is that the bore is one of the last things we should worry about. It's important to remember, though, that the lack of proper cleaning degrades accuracy. If someone told me his barrel was worn out because it wasn't accurate, my first thought would be that the bore was badly fouled.




“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 31002 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
What would soncorn do?
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quote:
Originally posted by sigfreund:
quote:
Originally posted by soncorn:
I see that it says replace the barrel if key-holing or unacceptable accuracy. Does anyone have any idea about how many rounds that would take shooting competitively in IDPA, for example?


I've never encountered a credible report of a SIG barrel's wearing out. I'm sure it can occur, but it must take a long time. Every now and then there's the recurring report of a 357 SIG P229 in Federal service that has over 100,000 rounds through it. Higher velocity cartridges like the 357 SIG tend to cause faster barrel wear.

My belief is that the bore is one of the last things we should worry about. It's important to remember, though, that the lack of proper cleaning degrades accuracy. If someone told me his barrel was worn out because it wasn't accurate, my first thought would be that the bore was badly fouled.


The reason I asked is because today I purchased a (very clearly) heavily used p228. I inspected for visible cracks in the frame and slide. The seller stated that the barrel needed to be replaced along with the recoil spring.

It was clear to me that the grooves in the barrel seem very shallow when I compare them to my other sigs.

I ordered a new barrel and a parts kit to give the gun a refresh and once over.

I was just trying to figure out about how many rounds the barrel has had through it. The barrel is not the original barrel (but the slide matches the frame so probably not a CPO) so who knows how much abuse the rest of the gun has seen.


Every citizen should be a soldier. This was the case with the Greeks and Romans, and must be that of every free state.
- Thomas Jefferson (1743-1826)
 
Posts: 1343 | Location: Fort Worth, TX, USA | Registered: October 20, 2002Reply With QuoteReport This Post
Freethinker
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It would be interesting to see how the old and new barrels compare in accuracy.




“Most men … can seldom accept the simplest and most obvious truth if it … would oblige them to admit the falsity of conclusions … which they have woven, thread by thread, into the fabrics of their lives.”
— Leo Tolstoy
 
Posts: 31002 | Location: 10,150 Feet Above Sea Level in Colorado | Registered: April 04, 2002Reply With QuoteReport This Post
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