MCX RATTLER 5.56 BLK 5.5 MLOK# PMCX-5B-TAP | PCB | 30+1 Manufacturer Model Number: PMCX-5B-TAP Manufacturer: SIG SAUER Model: MCX Rattler Pistol Caliber: 223 Rem | 5.56 NATO Type: Semi-Auto Pistol Item Type: Firearm Firearm / Accessory Action: Semi-Auto Firearm / Accessory Capacity: 30 + 1 Finish: Black Nitride Stock Frame Grips: Alloy Frame PCB - Pivoting Contour Brace Alloy Frame Magazine Quantity and Description: 1 30 rd. Magazine Overall Length: 19.3" Weight: 5.1 oz Shipping Weight: 8.85 Feature: M-Lok Handguard Feature: PCB - Pivoting Contour Brace Feature: 3-Prong Flash Hider Optic Adjustable Objective: false Optic Reticle Illuminated: false