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SIG SAUER P320/P250 .40/.357 Barrel Up to 12% Off w/ Free Shipping — 4 models

SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320/P250, .40SW, Compact, Broached, Black, Small, BBL-MOD-C-40
SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40
SIG SAUER Barrel, P320/P250, .357 SIG, Full, Broached, Black, Small, BBL-MOD-F-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
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SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320/P250, .40SW, Compact, Broached, Black, Small, BBL-MOD-C-40
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SIG SAUER Barrel, P320/P250, .40SW, Compact, Broached, Black, Small, BBL-MOD-C-40
SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40
3 of 10 images
SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40
SIG SAUER Barrel, P320/P250, .357 SIG, Full, Broached, Black, Small, BBL-MOD-F-357
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SIG SAUER Barrel, P320/P250, .357 SIG, Full, Broached, Black, Small, BBL-MOD-F-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
5 of 10 images
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
6 of 10 images
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
7 of 10 images
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
8 of 10 images
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
9 of 10 images
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357
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SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357

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Questions & Answers
which barrel would be compatible with a M18 P320 to swap the original 9mm barrel out to one of these .40S&W or .357Sig? Expert Answer

For a SIG SAUER P320/P250 .40/.357 Barrel to work in the Sig M18 you will need a 3.9" barrel. However, you will also need a .40/.357 slide for the M18.

by Hunter, Gear Expert, October 3, 2023
I have a .357 Sig Compact 3.9” can I use this .40 S&W 3.9” Barrel to convert my .357 Sig to safely fire .40 S&W using the .357 Sig Slide? Expert Answer

The SIG SAUER P320/P250 .40/.357 Barrel 3.9" 40S&W barrel can be used to switch out your .357 SIG 3.9" barrel.

by Hunter, Gear Expert, October 26, 2022
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
Sig Barrell by Pilot, Verified Owner, July 14, 2026
Will not fit in the 9mm slide must have a 40 /357sig slide
Most Recent Reviews
Dissatisfied by Barrell, Verified Owner, June 21, 2026
The description States it is for a p320 p250 and it does not fit a P320
Most Recent Reviews
Sig p320 357sig bbl by Ron, Verified Owner, December 18, 2025
Great price, fast shipping, easy to navigate website
Most Recent Reviews
Full size 40cal barrel by Barrel, Verified Owner, August 5, 2025
Exactly what I was looking for and shipping was fast.
Most Recent Reviews
Fits great by MSCK, Verified Owner, January 15, 2025
Ypu can replace your 40 cal barrel with the 357 barrel and use the 40 slide and mags with no issues. Fit and function was flawless and runs just fine. Great way to have a multi caliper handgun without the extreme cost of multi firearms.
Most Recent Reviews
Precision and Power: A Must-Have Upgrade for Your SIG by mrbrokerman, Verified Owner, December 8, 2024
I couldn’t be happier with the performance of the SIG SAUER P320/P250 .357 Sig Barrel. This barrel is a game-changer, offering a perfect blend of precision and power. Installation was a breeze—SIG’s commitment to quality is evident in the flawless ma...
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Read All 12 Reviews
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4 Models Available
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Product Info for SIG SAUER P320/P250 .40/.357 Barrel

BARREL, 320, 357, COMPACT, DLCimage

Specifications for SIG SAUER P320/P250 .40/.357 Barrel:

Manufacturer: SIG SAUER
Color: Black
Finish: Nitron
Fabric/Material: Metal
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320, SIG Sauer P250
Threads per Inch: Non Threaded
Flutes: No
Weight: 0.15 lb
Included Accessories: Standard
Condition: New
Quantity: 1

Package Contents:

  • SIG SAUER P320/P250 .40/.357 Barrel

SIG SAUER P320/P250 .40/.357 Barrel Orderable Models

List of Orderable Models

  • SIG SAUER Barrel, P320, .357 SIG, Compact, DLC, Black, Small, BBL-MOD-C-357 , MPN: BBL-MOD-C-357 , UPC: 798681550975 , Code: SD9-BPI-HBNY-BBL-MOD-C-357
  • SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40 , MPN: BBL-MOD-F-40 , UPC: 798681555857 , Code: SD9-BPI-HBNY-BBL-MOD-F-40
  • SIG SAUER Barrel, P320/P250, .40SW, Compact, Broached, Black, Small, BBL-MOD-C-40 , MPN: BBL-MOD-C-40 , UPC: 798681556243 , Code: SD9-BPI-HBNY-BBL-MOD-C-40
  • SIG SAUER Barrel, P320/P250, .357 SIG, Full, Broached, Black, Small, BBL-MOD-F-357 , MPN: BBL-MOD-F-357 , UPC: 798681556267 , Code: SD9-BPI-HBNY-BBL-MOD-F-357

SIG SAUER P320/P250 .40/.357 Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED, SIG SAUER Barrel, P320/P250, .357 SIG, Full, Broached, Black, Small, BBL-MOD-F-357 , MPN: BBL-MOD-F-357-EDEMO , Code: SD9-BPI-HBNY-BBL-MOD-F-357-EDEMO-IN-C
  • DEMO, SIG SAUER Barrel, P320/P250, .40SW, Compact, Broached, Black, Small, BBL-MOD-C-40 , MPN: BBL-MOD-C-40-DEMO , Code: SD9-BPI-HBNY-BBL-MOD-C-40-DEMO
  • DEMO, SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40 , MPN: BBL-MOD-F-40-DEMO , Code: SD9-BPI-HBNY-BBL-MOD-F-40-DEMO
  • USED, SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40 , MPN: BBL-MOD-F-40-EDEMO , Code: SD9-BPI-HBNY-BBL-MOD-F-40-EDEMO-RE-B
  • USED SIG SAUER Barrel, P320/P250, .40SW, Full, Broached, Black, Small, BBL-MOD-F-40, EDEMO1, Condition Parts Only/Salvage, Defective , MPN: BBL-MOD-F-40-EDEMO1 , Code: SD9-BPI-HBNY-BBL-MOD-F-40-EDEMO-DF-F
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Last updated 2026-07-20 UTC.