Glock, 45 M.O.S., Striker Fired, Compact Size, 9MM, 4.02" Marksman Barrel, Polymer Frame, Matte Finish, Fixed Sights, 17Rd, 3 Magazines, Front Serrations, Ambidextrous Slide Stop Lever, Flared Mag Well, nDLC Finished Slide and Barrel, No Finger Grooves with a Holosun Optic 507c