ProMag SIG21 10-Round Magazine for Sig P938 9mm

Description

The ProMag SIG21 is a detachable replacement magazine designed for the Sig Sauer P938 chambered in 9mm Luger. It provides a 10-round capacity in a steel body and is built with an injection-molded follower and a chrome-silicon wire magazine spring. Assembly and components are reported as made in the USA.

Key Specifications

• The magazine holds 10 rounds.
• The cartridge is 9mm Luger.
• Compatible with the Sig Sauer P938 pistol.
• The magazine body is constructed of heat-treated steel.
• The magazine follower is injection-molded.
• The magazine spring is formed from heat-treated chrome silicon wire.
• Product type is detachable.
• Quantity per package is 1.
• Listed dimensions are 1.60 x 2.90 x 9.55.
• Made in the USA.

As a spare or replacement for P938 owners, this ProMag SIG21 magazine provides a straightforward option with steel construction and common internal components used for consistent feeding. Its form factor and capacity suit concealed-carry pistols and range use where compact, OEM-compatible magazines are preferred.