The Sig Sauer P250/P320FS Extended Magazine 9mm Luger 21rd Black 3/Pk gives your full-size or carry P320 more time on the line with factory-engineered capacity. Each 21-round steel magazine is built to the same standards as the original mags shipped with your pistol, delivering consistent feeding and dependable performance in a slim, easy-handling profile.

This three-pack is ideal for range sessions, training classes, or keeping dedicated magazines for home-defense setups. The extended design maintains a comfortable grip on P320 Full, X-Full, X-Carry, and Carry models, while the high-lubricity finish, durable polymer follower, and high-tensile spring support long service life. Backed by Sig Sauer’s reputation for quality and innovation, these magazines are a straightforward upgrade for any P320 owner.

• Manufacturer: Sig Sauer
• Model: P250/P320FS Extended Magazine
• Caliber: 9mm Luger
• Capacity: 21 Rounds
• Quantity: 3-Pack
• Material: Steel Magazine Body With Polymer Follower
• Compatible Models: P320 Full, P320 X-Full, P320 X-Carry, P320 Carry