FREE SHIPPING & FREE RETURNS*
All
  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
0 Shopping Cart

SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger Up to 43% Off w/ Free Shipping — 2 models

Government Export Restriction Government Export Restriction
Government Restriction Government Restriction
You May Also Like
Best Rated SIG SAUER P320 Full Size 9mm Luger 21 Round Pistol Magazine, Coyote, 1 Pack, Steel, MAG-MOD-F-9-21-COY-21RD
SIG SAUER P320 Full Size 9mm Luger 21 Round Pistol Magazine, Coyote, 1 Pack, Steel, MAG-MOD-F-9-21-COY-21RD
(8)
List: $54.63 $52.89 Save Up to $10.71
Free 2 Day Shipping Timber Creek TC Sig Sauer P320 Grip Module, Flat Dark Earth, SS P320 GM FDE
Timber Creek TC Sig Sauer P320 Grip Module, Flat Dark Earth, SS P320 GM FDE
(6)
List: $449.99 $359.99 Save Up to $200.00
Best Rated SIG SAUER ROMEO5 1x20mm Red Dot Sight, 1x20 mm, 2 MOA Red Dot Reticle, 1 x CR2032 Battery, Matte, Black, SOR52001
SIG SAUER ROMEO5 1x20mm Red Dot Sight, 1x20 mm, 2 MOA Red Dot Reticle, 1 x CR2032 Battery, Matte, Black, SOR52001
(504)
List: $199.99 $143.99 Save Up to $102.08
Best Rated Federal Premium 9 mm Luger 147 Grain HST Jacketed Hollow Point Nickel Plated Brass Cased Centerfire Pistol Ammo, 50 Rounds, P9HST2
Federal Premium 9 mm Luger 147 Grain HST Jacketed Hollow Point Nickel Plated Brass Cased Centerfire Pistol Ammo, 50 Rounds, P9HST2
(29)
List: $74.99 $40.49 Save Up to $34.50
Free 2 Day Shipping TRYBE Defense Grade Threaded Pistol Barrel, Sig Sauer P320, 1/2 x 28 Thread, Black Nitride, TPBSIG320-BN
TRYBE Defense Grade Threaded Pistol Barrel, Sig Sauer P320, 1/2 x 28 Thread, Black Nitride, TPBSIG320-BN
(29)
List: $179.99 $119.99 Save Up to $60.00
Best Rated TRYBE Tactical Pistol Case, Black, PSTCASE
TRYBE Tactical Pistol Case, Black, PSTCASE
(12)
List: $29.99 $29.49
Coupon Available TRYBE Defense 10.5 in GOVT/SOCOM Profile AR-15 Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST1059MM
TRYBE Defense 10.5 in GOVT/SOCOM Profile AR-15 Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST1059MM
(35)
List: $149.99 $99.99 Save Up to $60.00
Coupon Available TRYBE Defense 7.5 in Thin Profile AR Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST759MM
TRYBE Defense 7.5 in Thin Profile AR Pistol Barrel, 9mm, 1/2X28 Threads, Nitride, Black, BARPIST759MM
(35)
List: $149.99 $99.99 Save Up to $60.00
Blazin' Deal TRYBE Defense Carbine AR 9mm A2 Flash Hider, black, A2FH9MM
TRYBE Defense Carbine AR 9mm A2 Flash Hider, black, A2FH9MM
(14)
List: $17.99 $4.09 Save Up to $13.90
Blazin' Deal TRYBE Defense Match Grade Non Threaded Pistol Barrel, Sig Sauer P320, Black Nitride, PBSIG320-BN
TRYBE Defense Match Grade Non Threaded Pistol Barrel, Sig Sauer P320, Black Nitride, PBSIG320-BN
(10)
List: $148.99 $33.49 Save Up to $153.50
Questions & Answers
Does it for the M18? Expert Answer

The SIG SAUER P320 Full Size Threaded Pistol Barrel would be compatible with the M18. However, this barrel was designed for full size P320 model pistols, meaning it will stick out much further past your slide. The correct size barrel for an M18 can be found linked below:
https://www.opticsplanet.com/sig-sauer-p320-compact-carry-9mm-threaded-barrel.html

by Ethan, Gear Expert, February 21, 2025
Will this fit me XFive? Expert Answer

This SIG SAUER P320 Full Size Threaded Pistol Barrel is not compatible with the P320 X-Five.

by Ethan, Gear Expert, January 24, 2025
View All Q&A You Have a Question? Ask!
Customer Reviews
Helpful Positive Review Product as described by Ric H, Verified Owner, January 21, 2025
Was a very clean swap and install obviously. Will order again as needed. Installed into a x-vtac
1/1 found this helpful
Helpful Positive Review Excellent quality product by Falco, February 27, 2024
Perfect fit and finish! I like go with OEM parts.So far nevertheless had any issues using OEM .
1/1 found this helpful
Most Recent Reviews Great Barrel by Kurt in Cypress, Verified Owner, April 2, 2025
Used this barrel on a P320 with a SIG mod X suppressor. Perfect fit, of course, and reasonably priced I believe. When ordering, make sure that you order the length that it is going to be with the thread protector on it. Don’t order based on your exis...
Read More...
Most Recent Reviews Solid barrel by Scootr, Verified Owner, December 24, 2024
Easy to install and great for P320 Build. Recommended for full size builds
Most Recent Reviews Easy to install by Scootr, Verified Owner, December 17, 2024
Easy to install, great for adding a compensator or other muzzle device if you are in a "free state"
Most Recent Reviews Easy to install by Scootr, Verified Owner, December 17, 2024
Easy to install, great for adding a compensator. Would also work for a direct thread suppressor if I wasn't in CA.
Read All 10 Reviews
On Sale
Best Rated

On Sale

This item is currently on sale and has a new, lower price! See more Sig Sauer Gun Parts items on sale
In Stock
2 Models Available

Show with deals only:

Coupon Available
On Sale
Condition
All
Condition Quality
All
Condition Details
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

Select a specific model above to see the deal!
TRYBE Tactical Universal Holster w/ Paddle and Belt Clip, Right, Black, TRT-UH-PBCKIT-BL
As low as $152.86
You Save Up to 48%
Receive $3.60 OP Bucks
Free Shipping*
Expert AdviceRequest for QuotePrice Match

Product Info for SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger

Replacement threaded barrel for SIG SAUER P320 Full-size with a loaded chamber indicator, chambered in 9mm. 5.5in long. SIG SAUER factory replacement pistol barrels are specially heat-treated for toughness and durability.image

This barrel is NOT compatible with the P320 X-FIVE slide.

Specifications for SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger:

Manufacturer: SIG SAUER
Color: Black
Finish: Nitron
Barrel Length: 5.5 in
Threads per Inch: 1/2x28
Caliber: 9mm Luger
Gun Make: SIG Sauer
Gun Model: SIG Sauer P320

Package Contents:

  • SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger
Products You've Viewed View all Recently Viewed Products 1–1 / 1
Image of SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger 2 models SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger

SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger Orderable Models

List of Orderable Models

SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566 , MPN: 8900566 , UPC: 798681649990 , Code: SD9-PTB-SS8900566-8900566
USED, SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566 , MPN: 8900566-EDEMO , Code: SD9-PTB-SS8900566-8900566-EDEMO-US-C

SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger Unavailable & Discontinued Models

List of Unorderable Models

USED, SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566 , MPN: 8900566-EDEMO , Code: SD9-PTB-SS8900566-8900566-EDEMO-IN-B
USED, SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566 , MPN: 8900566-EDEMO , Code: SD9-PTB-SS8900566-8900566-EDEMO-RE-C
USED, SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566 , MPN: 8900566-EDEMO , Code: SD9-PTB-SS8900566-8900566-EDEMO-RE-B
SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566
1 of 6 images
SIG SAUER Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
2 of 6 images
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
3 of 6 images
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
4 of 6 images
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
5 of 6 images
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566
6 of 6 images
SIG SAUER P320 Full Size 9 mm Threaded Barrel - 8900566

Tap Tap to Zoom

You can only compare up to 4 products.
Please remove a product before adding another one to your comparison view.