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The JKBBLS320 is a direct-fit 9mm barrel for your full-size P320, engineered by JK Armament to deliver reliable performance whether you're putting rounds downrange at the range or training for competition. This barrel starts with 416R stainless steel, the same material used in quality precision barrels across the industry, then gets a black nitride finish for durability and corrosion resistance.
JK Armament is built on serious credentials. The company was founded by a US Army veteran and Special Forces group head armorer with over 20 years of experience in machining and weapons development. While JK is known for their suppressors, they bring that same attention to detail to their barrel offerings. You get American-made components with a lifetime guarantee backing every product.
This is a true drop-in barrel that requires no gunsmithing or modifications. Simply unload your P320, remove the slide from the receiver and grip module, and slide out the factory barrel. The JKBBLS320 slides right in and seats properly. The 4.70-inch length matches Sig's full-size configuration, giving you the same sight radius and handling characteristics as the original.
With a 1:10 twist rate and a 9mm SAAMI chamber, this barrel is ready for standard 9mm ammunition right away. The black nitride finish provides excellent protection against the elements while being easy to clean and maintain. Whether you're building a custom setup or refreshing a well-used pistol, this is a straightforward way to get a quality replacement in the exact barrel length you need.
Yes, this barrel is designed specifically for Sig Sauer P320 full-size pistols. It simply drops in as a replacement with no modifications needed. If you have a compact or carry model with a shorter barrel, you'll need a different length barrel from JK or another manufacturer.
This model is not threaded for muzzle devices. If you need a threaded option for suppressor use, JK Armament makes threaded P320 barrels designed from the ground up for suppressor compatibility. This JKBBLS320 is a standard profile for general shooting and training.
Installation is straightforward and requires no gunsmithing. Simply ensure your firearm is unloaded, remove the slide from the receiver and grip module, and slide out the existing barrel. The new barrel slides right in and functions perfectly. Most people can do this in a few minutes.
416R is a hardened chromium stainless steel specifically suited for precision barrels because it offers excellent machinability and can be lapped to a high finish for bore accuracy. The black nitride coating adds durability, corrosion resistance, and requires minimal maintenance compared to uncoated steel.
| UPC | 850038425678 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | JKBBLS320 |
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