Designed for use on today's popular pistol-caliber carbines and similar designs that feed from Glock®pistol magazines, the ODIN Works XGMR makes it easy to change out mags, thanks to a unique, new magazine-release profile. This new release enhances the OEM magazine release on most of today's AR- style PCCs , thanks to an extended paddle. Each ODIN Works XGMR is machined from 6061 billet aluminum and can be used on AR-style rifles equipped with KNS trigger and hammer pins and the Magpul BAD lever. With the installation of this release, you'll see your reloading ability increase dramatically.