ProMag DRMA37 Drum Magazine for .45 ACP Glocks
The ProMag DRMA37 is a 40-round drum magazine engineered for Glock Model 21 and Model 30 .45 ACP pistols. This high-capacity option gives you significantly more rounds on tap than standard single-stack magazines, making it ideal for range sessions, competition, or home defense scenarios where extended capacity matters.
Construction & Materials
Polymer Housing: The drum is constructed from proprietary DuPont Zytel polymer—a material known for its durability and resistance to wear. The housing is precision injection-molded to maintain tight tolerances.
Springs & Internals: Magazine springs are formed from heat-treated stainless steel wire, precision-wound to exacting specifications. The injection-molded follower ensures smooth, reliable feeding throughout the magazine's capacity.
Feed Lips: Over-molded stamped steel feed lips and magazine catch provide positive engagement with your firearm and consistent round presentation.
Quality & Warranty
ProMag magazines are manufactured in the USA and backed by a lifetime guarantee against manufacturer defects. Every step of assembly is inspected and double-checked to maintain consistent quality standards.
Compatibility
Designed specifically for:
- Glock Model 21 (.45 ACP)
- Glock Model 30 (.45 ACP)
This drum magazine is a practical choice for shooters seeking extended capacity in a reliable, American-made package.
Features
- 40 - round capacity
- heat-treated chrome silicon wire spring
- manufactured & assembled in the u.s.a.
- easy loading
- rugged construction
- black polymer drum
- fits glock 21 & 30 models
