Icon Defense Billet Monolithic Upper Receiver, MLOK The Icon Defense Billet Monolithic Upper Receiver is an advanced billet upper receiver engineered for unmatched strength and reliability. Precision-machined from billet for exceptional rigidity and durability, each monolithic upper is designed to deliver superior alignment and consistent performance. Built to pair with any standard AR-15 barrel seamlessly, our billet monolithic platforms deliver uncompromising performance for demanding shooters who expect the highest level of engineering and craftsmanship. Specifications: Rail Length: 10.75″ Barrel Compatibility: Any standard AR15/M4 barrel between 11.5″ and 16″ in length Weight: 18.688oz 7075-T6 aluminum, hardcoat anodized Includes: 1x Monolithic Upper Receiver 1x Titanium Barrel Nut 1x Icon Defense gas block 1x Barrel Nut Wrench Set Port Door Pin
