ProMag Glock 21/30 Drum Magazine — .45 ACP, 40-Round

Description

The ProMag drum magazine provides high-capacity feeding for Glock Model 21 and Model 30 pistols. Designed for .45 ACP, the magazine carries 40 rounds in a compact drum housing to reduce bulk compared with multiple single-stack magazines. The housing is molded from a DuPont Zytel-based polymer and finished in black. This magazine is manufactured in the United States.

Key Specifications

• The magazine holds 40 rounds.
• Compatible with Glock Model 21 and 30.
• Chambered in .45 ACP.
• The drum housing is constructed of DuPont Zytel-based polymer.
• The exterior finish is black.
• Built with an injection-molded follower for consistent feeding.
• The feed lips and magazine catch are over-molded stamped steel.
• Overall dimensions are 3.50 x 6.50 x 16.25 inches.
• The listed weight is approximately 1.9 lb.
• Manufactured in the United States.

For range use, extended practice, or applications that require sustained capacity, this ProMag drum magazine offers a durable polymer housing and practical configuration for Glock 21/30 owners. Its compact drum form minimizes carried bulk while delivering a high-round count, and construction details such as the injection-molded follower and over-molded feed lips are intended to support reliable feeding under normal use. The black polymer finish provides a low-profile appearance suitable for common field and training environments.