Year after year, ProMag has increasingly become one of the leading manufacturers of firearms magazines in the world. Gun enthusiasts and law enforcement personnel have agreed, be it for recreational "plinking", competition shooting, or law enforcement, ProMag is the source you can count on.

Specifications and Features:
This is not a Glock Factory Magazine, it is an after market Magazine
Caliber: .45 ACP
Capacity: 40 Rounds
DuPont Zytel Drum Body
Heat Treated Chrome-Silicon Wire Spring
DuPont Zytel Polymer Follower
Over Molded Stamped Feed Lips
Color: Black

Fits:
Glock 21 and 30 Pistols