Kriss USA KVAMX2K45BL00 Mag-Ex2 Extension Kit made of Polymer with Black Finish & Adds 17 Extra Rounds for 45 ACP 13rd Glock 21 Gen3-5 Magazines (30rd Total)

The KRISS Mag-Ex Kit 2 is the ultimate capacity extending base plate for your factory standard Glock magazines. The KRISS Mag-Ex Kit 2 is made up of the extended baseplate outer sleeve and extended spring constructed of durable and lightweight reinforced composites. This Mag-Ex Kit 2 is designed for standard capacity G 21 for an overall capacity of 30 rounds for the KRISS Vector Glock handgun and Glock magazine-compatible pistol caliber carbine. *Incompatible with reduced capacity 10rd magazines.