RANGER 5 RBP 5.56MM BLK Manufacturer Model Number: 65918-BLK Manufacturer: AAC (Advanced Armament) Model: Ranger 5 RBP Caliber: 223 Rem | 5.56 NATO Type: NFA - Silencer Item Type: NFA Finish: Black High Temp Alphatek Overall Length: 5.8" Weight: 15.2 oz. Shipping Weight: 1.0 Feature: 1.375-24 HUB Feature: Reduced Back Pressure Feature: Double-Helix Gas System Optic Adjustable Objective: false Optic Reticle Illuminated: false