ProMag DRMA105 40rd Drum 45 ACP Black Polymer

The ProMag DRMA105 is a 40-round drum magazine designed for use with Thompson .45 ACP carbine platforms. It uses a proprietary DuPont Zytel-based polymer housing and features an injection-molded follower for consistent feeding. The magazine spring is formed from heat-treated stainless steel and the unit is manufactured in the USA.

Key Specifications

• The capacity is 40 rounds.
• The caliber is .45 ACP.
• Compatibility includes the Auto-Ordnance Thompson .45acp Carbine.
• The drum housing is constructed of a proprietary DuPont Zytel-based polymer.
• The magazine follower is injection molded.
• The magazine spring is formed from heat-treated stainless steel.
• The product is made in USA.
• The listed weight is 1.83.
• The listed shipping weight is 1.83.
• The finish is black.

Engineered for extended feeding needs on historical and recreational carbine platforms, this drum magazine pairs high capacity with a polymer-encased design and durable internal components. Its construction suits range use and shooting activities where reliable, sustained feeding is required while maintaining a compact footprint for a drum-style magazine.