Easy-to-install spacer fills the space between the bottom of the frame and the floorplate of longer magazines so you can use For Glock 19/23 magazines in For Glock 26/27 pistols. Constructed of high-strength, injection-molded polymer with a surface texture that matches For Glock pistol frames perfectly. Held in place with an allen screw. Made In USA. DISCLAIMER: This product is not manufactured, authorized, endorsed, or warranted by GLOCK. GLOCK does not warrant or represent that this product is compatible with GLOCK pistols.