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; 18 inches cold hammer forged proprietary steel chrome-lined barrel for a lifetime of accuracy and durability; 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; Gas system - user adjustable gas block CNC machined of 4140 hardened steel and Mil-Spec heavy phosphate coating, intermediate, direct impingement; Daniel defense full-latch impact plastic case; CA Compliant