The KRISS MagEx Kit 2 is the ultimate capacity extending base plate for your factory standard Glock magazines. It is made up of the extended baseplate outer sleeve and extended spring constructed of durable and lightweight reinforced composites. Combining the MagEx Kit 2 with the factory standard Glock magazine body and follower is a perfect match of reliable feeding toughness and aesthetics for the KRISS Vector. It can be used for your KRISS Vector Glock handgun and your Glock magazinecompatible pistol caliber carbine.