Glock Promagmagazine Spacer -
Easy-to-install spacer fills the space between the bottom of the frame and the floorplate of longer magazines so you can use Glock 19/23 magazines in Glock 26/27 pistols. Constructed of high-strength, injection-molded polymer with a surface texture that matches Glock pistol frames perfectly. Held in place with an allen screw. Made In USA.