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Questions & Answers
Will this fit the P320X RXP slide? Exact description is 320XF-9-BXR3-RXP Expert Answer

The Sig Sauer P320 9mm 5.5in Pistol Barrel will be compatible with the P320X RXP.

by Hunter, Gear Expert, March 9, 2022
Will this barrel work on the M-17 model? Expert Answer

This SIG SAUER P320 9 mm 5.5in Pistol Barrel is compatible with the Sig Sauer M17, however, you will need to remove the LCI and spring located under the rear sight.

by Ethan, Gear Expert, July 15, 2022
Customer Reviews
Helpful Positive Review Used in a Flux Raider by S, Verified Owner, March 1, 2022
Not a whole lot to say about this barrel other than it's OEM, seems to shoot as well as an OEM barrel ought to (I'm not shooting precision with it so can't weigh in on those fractions of MOA evaluations) and cycles and feeds like it should. I had it ...
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12/12 found this helpful
Helpful Positive Review Sweet barrel! by Drew, Verified Owner, March 24, 2022
Just what I was looking for my M17. Perfect fit after taking the lci out which is super easy to do. Highly recommend getting this if you want to run muzzle accessories, or suppressed. Looks like it was made for the barrel.
6/6 found this helpful
Helpful Positive Review Will not work with the M17 by Mike, Verified Owner, July 13, 2022
Please be forewarned, this will not work with the M17 due to loaded chamber indicator. Outstanding Sig Sauer quality and delivered quickly by Optic Planet. Please be forewarned, this will not work with the M17 due to loaded chamber indicator.
7/9 found this helpful
Helpful Positive Review Full Sized Threaded Sig P320 Barrel by Bob R, Verified Owner, September 21, 2024
I bought the Threaded Sig P320 Full Size Barrel. Both are awesome and as expected to be used to install a compensator or suppressor on the Sig P320 models. CAUTION to purchasers who wish to replace the Sig P320 X-Five Legion "bull barrel" with the fu...
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2/2 found this helpful
Helpful Positive Review Works great by Mike, Verified Owner, November 3, 2023
Works great just know if you have an M17/M18 version you'll have to remove the LCI... super easy just an extra step.
1/1 found this helpful
Helpful Negative Review Sig Sauer P320 Threaded Barrel by Brad, June 25, 2022
It’s probably perfect for any other P320. For an X5 Legion, it doesn’t fit. Total waste of time and money for me. Also, Thankfully I was at a range that was also a registered Sig Sauer dealer. The Range Officer told me there that sir had sent out a m...
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2/18 found this helpful
Read All 14 Reviews
Color: Black Barrel Length: 5.5 inThreads per Inch: 1/2x28 Caliber: 9mm Luger Gun Make: SIG Sauer Gun Model: SIG Sauer P250 , SIG Sauer P320 Full Size Condition: New

Code: SD9-PTB-SIG208-8900443

MPN: 8900443

UPC: 798681643318

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Product Info for SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded

Replacement barrel for SIG SAUER P320/P250 Full-size, chambered in 9mm. 4.7in long. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability.image

Specifications for SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded:

Manufacturer: SIG SAUER
Color: Black
Barrel Length: 5.5 in
Threads per Inch: 1/2x28
Caliber: 9mm Luger
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320 Full Size, SIG Sauer P250
Condition: New

Package Contents:

  • SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded

SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded Orderable Models

List of Orderable Models

SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443 , MPN: 8900443 , UPC: 798681643318 , Code: SD9-PTB-SIG208-8900443

SIG SAUER P320 9 mm 5.5in Pistol Barrels - Threaded Unavailable & Discontinued Models

List of Unorderable Models

DEMO, SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443 , MPN: 8900443-DEMO , Code: SD9-PTB-SIG208-8900443-DEMO
USED SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443, EDEMO4, Excellent, Inspect and Rebox , MPN: 8900443-EDEMO4 , Code: SD9-PTB-SIG208-8900443-EDEMO-RE-B
USED SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443, EDEMO3, Condition Like New, Inspect and Rebox , MPN: 8900443-EDEMO3 , Code: SD9-PTB-SIG208-8900443-EDEMO-RE-A
USED, SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443 , MPN: 8900443-EDEMO , Code: SD9-PTB-SIG208-8900443-EDEMO-RE-C
USED SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443, EDEMO1, Used, Condition Like New , MPN: 8900443-EDEMO1 , Code: SD9-PTB-SIG208-8900443-EDEMO1
USED, SIG SAUER Pistol Barrel, P320, 9 mm, 5.5in Threaded, Black, 8900443 , MPN: 8900443-EDEMO , Code: SD9-PTB-SIG208-8900443-EDEMO-US-C
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