The Faxon Match Series P320 threaded barrel (brand part no. 320B910NFLOQ-T) is a drop-in 9mm barrel for SIG P320 Full-Size slides. Faxon Firearms machines it from 416-R stainless with a Flame Fluted profile and a 1/2×28 threaded muzzle. The bore is button rifled 1:10 with six grooves, then the steel is stress relieved and heat treated and finished in salt-bath QPQ nitride inside and out. A thread protector is included. It is the barrel to pair with a compensator or a 1/2×28 suppressor on a P320.

Key Specifications

• The chamber is 9mm Luger (9×19), cut to the SAAMI chamber.
• It fits SIG P320 Full-Size slides.
• The listed length is 5.54 inches.
• The profile is Flame Fluted, Faxon’s fluted pattern that cuts weight.
• The material is 416-R stainless, heat treated and stress relieved.
• Rifling is button rifled, 1:10 twist, six grooves.
• The bore and rifling are air gauged.
• The finish is salt-bath QPQ nitride, inside and out.
• The muzzle is threaded 1/2×28 with a target crown.
• A thread protector is included for the muzzle threads.

Frequently Asked Questions

Is this barrel threaded? Yes. The muzzle is threaded 1/2×28 and a thread protector is included.

What can I mount on the threads? Faxon suggests pairing it with a Faxon EXOS compensator or a 1/2×28 suppressor. Its EXOS-515 compensator is made for the P320 Full-Size.

Does it shoot cast lead bullets? Yes. Six-groove land-and-groove rifling runs both jacketed and cast lead bullets.

Buy the Faxon Match Series Flame Fluted 9mm Threaded Barrel for SIG P320 Full-Size, 1/2×28

Find more in our handgun barrels section. Order from our Lubbock, Texas gun shop and it ships fast.