The Compact Crossover pistol G45 in 9x19mm combines a compact slide with a full-size frame and has all the benefits of a Gen 5 model. Utilizing the design and engineering GLOCK developed for its military pistols (G19X), combined with Operator and worldwide Law Enforcement specifications. This G45 FS model features front slide serrations, 3-dot white fixed sights, and a capacity of 17-rounds. About The Optic - Leupold 179585:The DeltaPoint(R) Pro NV (Night Vision) is proof that you don't have to compromise performance on a small sight. And now, it supports modern night vision devices with 10 brightness settings, including two that fine tune the red dot to match the sensitivity of your night vision equipment. We also added a customizable brightness setting at the top end the DP Pro NV. This makes it easier to quickly max out the intensity of your dot when conditions are at their brightest.