The conversation I had occurred in 2002, well into the new frame and milled slide era. FYI, the mud-railed Sigs won't make it to 10K.
If you wanna see 100K you'll need the stainless framed variant.
Not true. There are several forum members on the SIG forum that have had very high round count alloy frame SIGs and as Todd G. had witnessed and he spent a lot of time at SIG. I suggest that you post at the SIG forum also - there are a lot of SIG armorers over there also including Bruce Gray of Grayguns (who probably sees and works on more SIGs than most anyone other than SIG and shoots SIGs professionaly) who most likely will reply to such a post or email him. Your info on 30,000 round frame life is simply rediculous for a well maintaned alloy frame SIG.
FYI here is info from a SIG armorer on the SIG forum.
NOTE: reference to mainspring change comment and reference to SIGS working fine at 40,000 rounds with original mainspring.
Sure does NOT look like a maintenance schedule for a pistol that has a frame life of only 30,000 rounds!
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http://sigforum.com/eve/forums/a/tpc/f/150601935/m/6801056451
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 †
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