Super Duty MOD1 Complete Upper Receiver 5.56 13.9" Desert Dirt Color Mag Loader/Unloader and Arisaka 300 and 600

and Arisaka 300 and 600 Series

Anodized Finish

The sturdy stainless-steel internals withstand corrosion and long-term loaded storage with no loss of function

6061 Series Alum bezel with Mil-Spec Hard Anodizing

and the integral riveted aluminum heat shield combines with the reinforced

Super Duty MOD1 Complete Upper Receiver 5.56 13.9" Desert Dirt Color Mag Loader/Unloader and Arisaka 300 and 600The Super Duty MOD1 is the current evolution of the Super Duty platform, incorporating continuous design development to provide superior ergonomics and modularity while maintaining the legendary balance of performance and reliability. Foundational to the renowned quality and performance of this Super Duty system is the in house produced Cold Hammer Forged, chrome lined barrel and Nanoweapon coated Reliability Enhanced Bolt Carrier Group. Both the