16″ Cold Hammer Forged proprietary steel chrome-lined barrel for a lifetime of accuracy and durability; User-adjustable gas block for reliable suppressed shooting; Superfinished and DLC-coated bolt carrier group makes it easy to clean and operate in all conditions; Bolt carrier is equipped with a buffer for optimized cycling and improved recoil impulse; Bolt is designed with enhanced extractor geometry and dual ejectors for reliable cycling; Innovative 4-Bolt Connection System to ensure greater accuracy; GRIP-N-RIP independently ambi charging handle with anti-gas features for a better shooting experience