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The Sig Sauer P320 9mm Legion is a refined duty and duty-adjacent pistol built on the modular P320 platform that's trusted by military and law enforcement worldwide. This 3.9-inch barrel variant strikes a practical balance between shootability and concealability—compact enough for off-duty or plainclothes carry, substantial enough to run all day at the range or in professional use. The Legion line represents Sig's premium tuning of the P320, with attention to ergonomics and reliability that separates it from standard-issue variants.
The 17-round magazine capacity means you're carrying meaningful firepower without sacrificing carry comfort. The 9mm round offers proven stopping power and low recoil, making follow-up shots fast and accurate whether you're training, competing, or relying on the gun professionally. Legion pistols are known for their refined grip texture, optimized trigger break, and meticulous quality control—details that matter when your sidearm is your responsibility.
If you're an off-duty professional, a serious civilian shooter, or someone who values a modular platform with genuine upgrade potential, the P320 Legion delivers the kind of versatility and refinement that justifies the investment. Sig's modular design means barrels, slides, and frames are swappable, so your P320 can evolve with your needs.
| Caliber | 9mm Luger |
| Barrel Length | 3.9 inches |
| Magazine Capacity | 17 rounds |
| Finish | Black |
| Platform | Sig Sauer P320 (modular) |
Yes. The P320 platform is widely adopted by military and law enforcement globally and has a strong reputation for reliability. The Legion version adds refined ergonomics and quality control focused on professional and serious civilian shooters.
The P320 is built on a modular platform, which means barrels and slides can be swapped. This allows you to reconfigure your pistol, though any conversion should follow Sig's specifications and local laws.
The product listing indicates a 17-round magazine is included. Refer to the full product details or contact us for information on additional included accessories or documentation.
At 3.9 inches, this P320 is compact enough for off-duty or plainclothes carry. Ultimately, concealability depends on your holster choice, belt, and clothing—we recommend trying on with your intended setup before committing.

SKU: 198466472 • Weight: 4.4oz