ProMag DRMA105 40rd Drum 45 ACP Black Polymer

The ProMag DRMA105 is a 40-round drum magazine designed for .45 ACP firearms, specifically compatible with the Auto-Ordnance Thompson carbine. Constructed from a durable black polymer based on DuPont Zytel, it features an injection-molded follower and a heat-treated stainless steel spring for reliable feeding. Made in the USA and backed by a lifetime guarantee, this high-capacity magazine offers extended shooting sessions with reduced reload frequency.