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The Backup Tactical threaded barrel gives your P320 Compact the threading you need for suppressors and muzzle devices. Built from 416 stainless steel and finished in black nitride, it's a straightforward upgrade that drops right in without any gunsmithing.
This barrel is machined to work with the standard Sig P320 Compact that comes with the factory 3.9-inch barrel. It's not compatible with the X-Series Compact, which uses a shorter 3.6-inch factory barrel, so make sure you have the right model before ordering. The design accommodates pistols with or without the loaded chamber indicator, giving you flexibility depending on your setup.
The 1/2×28 thread pattern accepts all the standard muzzle devices you'd want to run. The black nitride coating locks in durability and resists rust, so you're getting a barrel that will hold up to regular use and handling. Threading runs the full length of the muzzle end, and a thread protector is included to keep the threads clean when you're not running a device.
This barrel shares the pulled broached rifling and SAAMI-spec 9mm chamber you'd find on solid factory options, but with the advantage of threading built in from the factory. Installation takes minutes on any P320 Compact, and Backup Tactical makes these barrels in small batches to keep quality consistent across every unit.
This barrel is designed specifically for the standard Sig P320 Compact with the 3.9-inch factory barrel. If you own a P320 X-Series Compact, which uses a 3.6-inch factory barrel, this won't work for you. Double-check your current barrel length before ordering.
The 1/2×28 designation means the threads are 1/2-inch in diameter with 28 threads per inch. This is the standard size for most 9mm muzzle devices on the market today, including most suppressors, compensators, and brakes.
No, it's a true drop-in design. You can swap it for your factory barrel without any fitting or gunsmithing. It works with frames that have a loaded chamber indicator or without one, so you can use it regardless of your specific P320 Compact configuration.
Black nitride is a hardened coating that sits on top of the steel, not just a surface treatment. It resists rust and holdup wear well, though like any finish it can show marks over time from normal handling and use. It's a solid choice for a working barrel.
| UPC | 686696690338 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | S320TB-BLK |
| Caliber/Gauge | 9mm |
| Color | Black |
| Product Type | Barrel |
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