Questions about this p80 Sig slide.

Dave said:

P80 SLIDE – PF320 COMPACT OCS NITRIDE | Polymer80

polymer80.com polymer80.com
This is the compact P320, meaning a 3.9" barrel, right? Does this accept all the factory Sig slide parts?
Click to expand...

Yes, the proportions look right for a Sig P320 Compact version. While the Polymer80 site gives you nothing to work with, others are selling the same part number and are listing a little more detail about the slide.

Polymer 80 PF320 Compact Slide w/ RMR Optics Cut - Blemished

Looks like a 3.9" barrel, 9mm breech dimensions, cut with the commercial Sig dovetail irons and a Trijicon RMR. I have not seen a top view of the slide, so I don't know if it has the cut for the loaded chamber indicator or not.

BTW, you can ID the barrel length of unknown P320's in photos by using the visible length of breech. The length the breech (i.e. the size of the ejection port) is 1.25" long on all of them, so you can use that to estimate the length of the barrel. From the P80 photo of the slide, the length from breech face to muzzle is a little more than 3 times the ejection port, so a 3.9" barrel looks to be what it was made for.
 
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