Super Duty MOD1 Complete Upper Receiver 5.56 13.9" Black STILETTO the AUS mount is machined

the AUS mount is machined from a single piece of billet 7075-T6 aluminum and is finished with MIL-STD Type III

The SureFire PROCOMP-762-5/8-24 muzzle brake has a blind pilot hole at the 3 and 9 o'clock position to enable fine-tuning of recoil characteristics for individual shooting styles or ammunition characteristics

but optimized for aftermarket PDW length tubes from manufacturers such as LWRCI

The upper receiver is then slid onto the rod and the rod's integral splines enter the barrel extension and secure the barrel extension from turning

Super Duty MOD1 Complete Upper Receiver 5.56 13.9" Black STILETTO the AUS mount is machinedThe 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