Ghost Inc. Bullet Middle Slide Release, Extended, Fits Glock Gen 1-4, Matte Finish, Black GHO_BMSR_BLK The Ghost Bullet Middle Slide Release (BSMR) is designed for aggressive manipulations for positive slide release and slide stopping power under the most adverse conditions. It is large enough for fast controlled movements but streamlined to be unobtrusive. Made with the finest stainless steel" the Bullet extended slide release fits a wide variety of GLOCK pistols