ProMag SIG P320 9mm 21-Rd Magazine — Blued/FDE

Description

ProMag’s 21-round magazine is designed for use with the Sig Sauer P320 chambered in 9mm. The magazine combines a heat-treated steel body with a blued finish and a flat dark earth polymer endplate for a functional mix of durability and visual contrast. It uses an injection-molded follower and a spring formed from heat-treated chrome silicon wire for consistent feeding. The magazine is manufactured in the USA and intended as a high-capacity spare for range, carry, and training uses.

Key Specifications

• The magazine holds 21 rounds.
• Designed to fit the Sig Sauer P320 pistol.
• Intended for the 9mm caliber.
• The magazine body is constructed of heat-treated steel with a blued finish.
• Features a flat dark earth polymer endplate.
• Includes an injection-molded polymer follower.
• The spring is formed from heat-treated chrome silicon wire.
• Assembled and manufactured in the USA.
• Suited for range, carry, and training applications.

Well-suited as a dependable spare for P320 owners, this ProMag magazine emphasizes straightforward construction and consistent function. Its combination of blued steel, a urethane-style polymer endplate in flat dark earth, and precision-wound spring work together to provide reliable feeding and durable service life. For shooters seeking a higher-capacity option from a US-made manufacturer, this magazine delivers practical, no-nonsense performance.