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BCM
Durkin Tactical Franklin Armory
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Posted: 8/23/2017 5:22:56 PM EDT
Living in CA, I can't get a 10mm factory P220.  I can get a stainless .45 P220 and a 10mm upper separately.
Will the 10mm upper frame/slide/recoil assy fit on the .45 frame?
Obviously you'd want to make sure its a stainless frame, any other caveats, like a specific version?
Anybody have both that can try??
Link Posted: 8/23/2017 7:04:44 PM EDT
[#1]
You could contact Bruce Gray, grayguns.com - they pioneered the conversion. It required IIRC respringing everything and a custom barrel...not sure if it required a custom locking insert in the frame. There's a thread on it on sigforum or sigtalk or one of the other sig boards.

It's doable...not optimal I don't think, not with the 10mm out now, but it's doable.
Link Posted: 10/20/2017 5:25:50 PM EDT
[#2]
I have a 220 in 45 and 10 mm.  The 45 has a portion of the feed ramp cut into the frame, the 10mm feed ramp is only cut into the barrel.  That may be an issue.
Link Posted: 10/20/2017 8:26:19 PM EDT
[#3]
Discussion ForumsJump to Quoted PostQuote History
Quoted:
I have a 220 in 45 and 10 mm.  The 45 has a portion of the feed ramp cut into the frame, the 10mm feed ramp is only cut into the barrel.  That may be an issue.
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Are you sure? Cause since my last post I've picked up a couple more 220s...

I'm looking at my 220 in .45acp, 220 compact, and 220 10mm and the frames are identical.

The locking block on the 45 has a feed ramp cut into it, and the 10mm doesn't...but the frames themselves once you take the block out is identical.
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