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SIG SAUER P320 Full Size Threaded Pistol Barrel, 9mm Luger Up to 35% Off and Blazin' Deal w/ Free S&H — 2 models
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
its an OEM barrel that fits a full size slide and is accurate.
put mine in my flux raider with a Harrington arms compensator and its works flawlessly
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...
Prices have been cut drastically on select models of 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 - sorry about that. This offer won't last long, so don't miss out!
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.
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
Caliber:
9mm Luger
Gun Make:
SIG Sauer
Gun Model:
SIG Sauer P320
Package Contents:
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
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 Threaded Pistol Barrel, P320 Full Size, 9mm Luger, 5.5in, 1/2x28, Nitron, 8900566, MPN:
8900566, UPC: 798681649990, Code: SD9-PTB-SS8900566-8900566
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-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-IN-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
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-OB-A
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
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