Norsso N19DG Gen 5 Reptile XP Glock Slide RMR Cut Black N19DG-REP-XP-5-RMR-BLK. The Reptile XP leads the way for our new N19DG line N19DG Reptile XP Features: Optic milling to mount a Trijicon RMR by default Top ports designed to facilitate a...