All TANDEMKROSS branded products come with a lifetime guarantee! This extension to your Mark III 22/45 Magazines gives added grip when pulling out your magazines. With added material magazines are easier to seat and give that positive edge that they are locked in when it counts. The tacticool curves are eye catching and add a certain personal flair to your firearm. Durable and rugged Zytel material ensure the magazine bumper is made to last. Simple installation, only takes minutes to do. Supported Model List: (FITS 22/45 Models Only) – MKIII 22-45 – MKIII 22-45 Competition – MKIII 22-45 Government Target – MKIII 22-45 Target – MKIII 22-45 LITE – MKIII 22-45 THREADED Product Code: MARWE9JA79