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Questions & Answers
Are the threads left or right handed? Expert Answer

The SIG SAUER P320 4.3in Pistol Barrel utilizes standard 1/2x28 TPI threads.

by Ethan, Gear Expert, June 2, 2022
this barrel is for subcompact/xcompact or compact/carry? Expert Answer

This barrel is 4.3" in length and is for the P320 XCOMPACT & Sub-Compact models.

by Kurt Colbourne, Gear Expert, December 1, 2021
Customer Reviews
Helpful Positive Review
Nice barrel but the wrong one for my Carry model by DeanD, Verified Owner, February 20, 2024
So, in browsing barrels for my P320 Carry/Compact Optics planet recommended this barrel. For some reason I ignored the "X" and "Subcompact" parts and only focused on the "Carry" part. Then I saw the barrel is 3.6 which is right for the Carry and Co...
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1/1 found this helpful
Helpful Positive Review
Super confused by Oki, Verified Owner, September 5, 2022
I purchased this for the stock 3.9 inch barrel on a P320 AXG Scorpion and immediately contacted the order desk to change to the 8900444 barrel. This was based on some of the confusing answers to questions and what I found on the Sig site. The Sig sit...
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4/5 found this helpful
Most Recent Reviews
Break in period by Clyde, Verified Owner, August 6, 2023
I didn’t realize there was a bit of a break in period for new pistol barrels. I was having failure to eject on about the first 50 rounds. Racked the slide a bunch while I was on the couch and shot a few mags through it and now it’s running smooth. Fo...
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0/1 found this helpful
Most Recent Reviews
This is a review of my SIG Sauer barrel 9 mm by Ean Alford, Verified Owner, February 12, 2025
This is a awesome product works perfectly just what I ordered just what I wanted
Most Recent Reviews
sig p320 xcompact barrel 4.3inch by Pcx, Verified Owner, February 12, 2025
Nice barrel if you’re looking to add a comp. If you’re hesitating. Don’t buy. Will not regret.
Most Recent Reviews
Great product by FridayAlaska, Verified Owner, April 4, 2024
No issues with this barrel. Perfect fit and well finished.
Read All 7 Reviews

We've got an AWESOME deal for you!

Blazin' Deal
Prices have been cut drastically on this product as part of a special offer. These prices are so low that there's no double-dipping with coupons or any additional discounts, but you'll still get the best deal out there. This offer won't last long, so don't miss out!
Color: Black Barrel Length: 4.3 inThreads per Inch: 1/2x28 Caliber: 9mm Luger Gun Make: SIG Sauer Gun Model: SIG Sauer P250 , SIG Sauer P320 Included Accessories: Standard Condition: New

Code: SD9-PTB-SIG210-8900445

MPN: 8900445

UPC: 798681643332

Blazin' Deal
List: $214.99Save 16%
$179.99

Product Info for SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in

Replacement barrel for SIG SAUER P320/P250 Xcompact and sub-compact models, chambered in 9mm, 3.6in long. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability.image

Chambered in 9mm, this threaded barrel is meant to fit with P320 XCOMPACT & Sub-Compact models. Barrels can be replaced easily and conveniently by simply ensuring the firearm is unloaded, removing the slide from the receiver and grip module, and sliding out the existing barrel.

Compatibility: 

This barrel is designed for sub-compact or XCOMPACT P320 variants that do NOT have the loaded chamber indicator.

Specifications for SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in:

Manufacturer: SIG SAUER
Color: Black
Barrel Length: 4.3 in
Threads per Inch: 1/2x28
Caliber: 9mm Luger
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320, SIG Sauer P250
Included Accessories: Standard
Condition: New

Package Contents:

  • SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in

SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in Orderable Models

List of Orderable Models

  • SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445 , UPC: 798681643332 , Code: SD9-PTB-SIG210-8900445

SIG SAUER P320 X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-IN-C
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-RE-C
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-US-C
  • DEMO, SIG SAUER Pistol Barrel, P320, 9 mm, 3.9in, Threaded, Black, 8900445 , MPN: 8900445-DEMO , Code: SD9-PTB-SIG210-8900445-DEMO
  • USED SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445, EDEMO11, Condition Fair, Installed/Mounted , MPN: 8900445-EDEMO11 , Code: SD9-PTB-SIG210-8900445-EDEMO-IN-D
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-RE-B
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-OT-C
  • USED SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445, EDEMO18, Used, Condition Like New , MPN: 8900445-EDEMO18 , Code: SD9-PTB-SIG210-8900445-EDEMO18
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-RE-A
  • USED SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445, EDEMO14, Used, Condition Fair , MPN: 8900445-EDEMO14 , Code: SD9-PTB-SIG210-8900445-EDEMO14
  • USED, SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445 , MPN: 8900445-EDEMO , Code: SD9-PTB-SIG210-8900445-EDEMO-US-U
  • USED SIG SAUER X Compact/Subcompact 9mm Threaded Barrel, No LCI, 4.3in, Black, 8900445, EDEMO17, Used, Condition Fair , MPN: 8900445-EDEMO17 , Code: SD9-PTB-SIG210-8900445-EDEMO17
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