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My P320 Full Size .357 SIG is approaching 10,000 rounds. I called SIG customer service to order a spare recoil spring since they are not in the store. The customer service representative I talked to said that the spring and the guide rod are sold separately. My spring is captured on the guide rod, and I can't see how it comes apart.

Am I missing something or was the customer service rep wrong?

I would order Gray Gun's rod that uses 1911 springs, but it appears they recommend them only for 9 mm.


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"They who would give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety."
- Benjamin Franklin

"So this is how liberty dies; with thunderous applause."
- Senator Amidala (Star Wars III: Revenge of the Sith)
 
Posts: 816 | Location: Southwest Ohio | Registered: October 07, 2011Reply With QuoteReport This Post
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Dunno nuthin' about P320's, but one of my Beretta's has a captured recoil spring and the guide rod and spring are sold separately.

The guide rod is three pieces, but snaps together once the spring is in place never to come apart again unless you cut or break it.
 
Posts: 1157 | Registered: October 01, 2013Reply With QuoteReport This Post
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My 2015 P320 FS .40 has a captive spring as well. Could be that they replaced the captive with separate, given the following:

https://www.sigsauer.com/wp-co...ads/2016/07/P320.pdf

Page 62 of the Sig P320 Manual. Pics look like Compact/Sub-Compact have captive and FS looks like a separate rod/spring, even though they say "assembly".

EDITED: After checking my own FS recoil spring assembly, I can't tell from the pic in the manual whether it's captive or not. It's the angle. I'd call Sig CS and see if they know what's going on.

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I do have a GGI FAT rod that was designed for the 9 mm. I bought Wolff 17, 18,5 and 20# RS for it. Functions well (100%) with all three weights. The weights are close to P226 .40 and GM .40 1911's. DO NOT use the 9 mm RS for .40/.357 as it is way too light. I generally use the 17# at the range.

I use it with mid-range reloads, NOT factory. GGI considered the 9 mm factory pistols to be "oversprung" for competition purposes, which is why they developed theirs to provide less muzzle rise. This is not the case with the factory .40 RS.

GGI has done no testing with anything other than the 9 mm, so you are on your own if you choose to use it in .40/.357.

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


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Posts: 3634 | Location: Northeast | Registered: June 29, 2006Reply With QuoteReport This Post
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I looked at mine, too, and I bet it comes apart. One end has a "hole" in it, like a tool could fit into, and the other end has two flats. I bet the captive parts screw together.
 
If so, it would be similar to my P220-10mm, which is also captive. I learned about how it goes together when it came apart during disassembly for cleaning. Spring itself aside, there are 3 pieces, the longer "solid" piece with two holes in the end (for some tool). Then a hollow piece that the "solid" one slides through. And looking carefully there is a tiny cap screw that threads into the long "solid" piece to bring it together. I put solid in quotes because it is not, completely solid. There is a threaded hole in one end to receive the little cap screw.
 
 
Posts: 6402 | Location: South Congress AZ | Registered: May 27, 2006Reply With QuoteReport This Post
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Wow. How does your 320 look, after all those rounds? By chance, any pictures you can post?
 
Posts: 556 | Location: Michigan | Registered: November 18, 2009Reply With QuoteReport This Post
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So, the customer service guy said he screwed up and should have sold me an assembly instead of just a spring. He is going to send me one for free, but they don't have them in stock. I guess SIG didn't expect us to actually shoot the pistols we bought. Mad

I asked him for the part number so I could hopefully avoid confusion on future orders and he told me it is RSA-320F-9. This doesn't sound right to me since the "-9" would seem to indicate 9mm and not .357 SIG. I asked him if he was sure that was the correct number and he said it was.

Is there a good way to test it once I get it? How would I know if it was too light, and could it damage anything if I shoot it and it is too light?


------------------------------
"They who would give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety."
- Benjamin Franklin

"So this is how liberty dies; with thunderous applause."
- Senator Amidala (Star Wars III: Revenge of the Sith)
 
Posts: 816 | Location: Southwest Ohio | Registered: October 07, 2011Reply With QuoteReport This Post
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I received my Gray Guns guide rod about a week ago and was just about to order some Wolff springs when I got a notice from SIG stating that my recoil spring assembly had shipped and should be here Tuesday. It is interesting to note that the part number noted is RSA-320F-4035745 and not RSA-320F-9 as I was originally told by customer service. I'm glad someone that knew what they were doing intervened and shipped the correct part.

I'll still probably order the springs for the Gray Guns rod just to see if the added weight makes any difference and to have as a backup.


------------------------------
"They who would give up essential liberty to obtain a little temporary safety, deserve neither liberty nor safety."
- Benjamin Franklin

"So this is how liberty dies; with thunderous applause."
- Senator Amidala (Star Wars III: Revenge of the Sith)
 
Posts: 816 | Location: Southwest Ohio | Registered: October 07, 2011Reply With QuoteReport This Post
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