If you're running a Sig Sauer P320 Compact and want to dial in accuracy, a quality match-grade barrel swap is one of the best upgrades you can make. The Zaffiri Precision threaded stainless steel barrel for the P320 Compact is a straightforward drop-in replacement that lets you take control of your pistol's precision without gunsmithing. Built in the USA from 416R stainless steel and precision-manufactured to match-grade standards, this barrel gives you the foundation for tighter groups at the range or more confident performance in the field.
The barrel comes threaded (1/2 x 28) and includes a thread protector, so you're ready to mount a suppressor or muzzle device right out of the box—or simply use the protector and leave it as is. The polished chamber and bore are designed to cycle reliably with lead, plated, and jacketed ammunition. At 4.57 inches overall length, it fits the P320 Compact slide cleanly and seats as a true drop-in, no fitting required. The stress-relieved and heat-treated 416R steel (hardened to RC 40-42) ensures durability and consistent performance shot after shot.
One thing to keep in mind: this barrel is built for the P320 Compact specifically and will not fit the P320 X-Carry. Make sure your slide is the Compact model before ordering. The conventional rifling (1:10 twist) is well-suited to a wide range of 9mm loads, from target rounds to defensive ammunition. Whether you're chasing tighter accuracy at a precision match or just want a better-shooting Compact, this is a solid upgrade that does what it promises without the guesswork.
| Brand | Zaffiri Precision |
| Firearm Compatibility | Sig Sauer P320 Compact |
| Caliber | 9mm |
| Overall Length | 4.57" |
| Muzzle Thread | 1/2 x 28 |
| Rifling Twist | 1:10 |
| Material | 416R Stainless Steel |
| Heat Treatment | Stress relieved, hardened to RC 40-42 |
| Finish | Polished chamber and bore |
| Included | Thread protector |
No. This barrel is designed exclusively for the Sig Sauer P320 Compact and will not fit the P320 X-Carry. Be certain you have the Compact model before ordering.
It's a true drop-in. No gunsmithing, fitting, or special tools are required—simply swap it in and you're ready to shoot.
The polished chamber and bore are designed to cycle lead, plated, and jacketed ammunition reliably. The 1:10 twist works well across a wide range of 9mm loads.
Yes. The barrel is threaded 1/2 x 28, which is the standard 9mm suppressor thread pitch. A thread protector is included if you want to shoot unsuppressed.
Zaffiri Precision
Zaffiri Precision
Sig Sauer
