[Edsel]

http://sigtalk.com/sig-sauer-pistols/42585-p229-vs-m11-a1.html

Latter - model P229s should all be able to accommodate the P229 - 1 Caliber X - Change kits.

 

[Malicious Compliance]

If this was my gun, I'd just get a Barsto conversion barrel and go with that. Running two different steel slides on an alloy frame can possibly lead to some abnormal wear on the frame rails. Using the Barsto conversion barrel would eliminate this possibility.

As to the conversion kit fitting, there are two conversion kits for the P229, not certain they are both still available. One for the railed P229 frame, the other for use on a frame without a rail. I'm guessing the German frame you have most likely does not have a rail and the conversion kit under consideration is for a railed frame. This may be leading to some of the confusion. But I can see no reason each of these conversion kits will not function on either of the frames. There just might be a gap between the frame dust cover and slide chin on one of these set ups, not a functional issue at all.

 

[Steelhat]

When I got a 9mm x-change kit for my 2013 P229SAS .40 FrankenSIG CPO it didn't fit.
I called SIG CS and they sent me a shipping label to fit it for free. While it was going to the mothership for free I decided to have them put the SRT kit and .357SIG barrel in as well (with a 20% discount). I got the x-change kit online for $200. If I would do it again I would go with a BarSto barrel for the reasons MC stated. My P229 sports a legacy SAS slide and the x-change kit came with the newer design (full height serrations and long extractor). Even though I had no issues after SIG fitted the kit to the frame, I like the legacy slide better. Another advantage of the conversion barrel - when you hit the range for multicaliber fun you just need to pack the barrel and the recoil spring which fits in the vest pocket and you're good to go. For plinking the .40/,357 mags work fine - for defensive use I would highly recommend to get some P229-1 9mm mags. With the .40/.357 mags using 9mm I had the slide lock back even though ther was still one round in the mag.

 

[sigsrok]

Call SIG Customer Service for a definitive answer. Ask for Kyle Faucher, he is the best!

 

[jsawyer09]

I've learned that if your SAS is German framed, then it will for certain take the P229 'Legacy Slide' version (with the front/forward slide serrations); it will in all likelihood not accept the newer P229-1 type with the longer extractor and full height serrations. Osage carries both. I have tried both iterations on several different P229 variants, and my experience reflects the above.