M18 CSS 9MM COY 3.9" MS 21+1 M18-9-CSS-MS Manufacturer Model Number: M18-9-CSS-MS Manufacturer: SIG SAUER Model: M18 CSS Caliber: 9mm Type: Semi-Auto Pistol Item Type: Firearm Firearm / Accessory Action: Striker Fired Firearm / Accessory Capacity: 21 + 1 Finish: Coyote PVD Sights: Siglite Front/Rear Stock Frame Grips: Steel Frame Coyote Polymer Steel Frame Magazine Quantity and Description: 3 (2) 21 rd. (1) 17rd. Overall Length: 7.25" Weight: 28.1 oz. Shipping Weight: 3.85 Feature: MHS Slide Configuration Feature: M18 Serial Number Series Feature: Ambi Controls Optic Adjustable Objective: false Optic Reticle Illuminated: false