GLOCK 45 MOS - Compact Crossover in black with Modular Optic System The compact crossover pistol G45 MOS in 9x19mm combines a compact slide with a full size frame and has all the benefits of a Gen5 model. The slide in MOS configuration makes it easy to mount a reflex sight on the pistol's slide without the need for a new slide or separate mounting system. Utilizing the design and engineering GLOCK developed for its military pistol (G19X), combined with operator and worldwide Law Enforcement specifications. The slide has the proven, superior GLOCK hard-surface finish nDLC in non-reflective black. It comes with front serrations (FS) which provide an addit Mfg: Glock