Grip Extension For GLOCK model 26/27/28/33/39 These units replace the magazine base plate and retain all other factory components. They do not alter the capacity of the magazine. These units will add 1" additional length resulting in better control and comfort. *ALSO FITS GLOCK 28 (380 ACP)Key Benefits These units increase the grip length of the Sub Compact Glock AutoPistols with out increasing their capacity. These units blend with the contours and texture of the handgun giving a factory appearance. Made from High Impact Polymer and withstand drop tests at temperatures from -20 F to 250 F. They form the next logical finger positioning feature to provide control and comfort without sacrificing conceal ability. DISCLAIMER: 'GLOCK' is a federally registered trademark of GLOCK, Inc. and is one of many trademarks owned by GLOCK, Inc. and GLOCK Ges.m.b.H. Neither Pearce Grip, Inc. nor this site are affiliated in any manner. 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.