The Radian model 1 upper receiver and hand guard are meticulously CNC machined to complement each other perfectly, with strategic reinforcements in critical areas for added strength and durability. Crafted from billet 7075-T6 aluminum, the upper receiver is equipped with essential components including a dust cover, hand guard anti-rotation pin, lightweight forward assist and the Raptor-SD ambidextrous charging handle. The hand guard features Magpul M-LOK slots for versatile accessory attachment, secured to the barrel nut with four black nitride-coated steel cross-bolts to resist corrosion. Every surface undergoes precise machining and chamfering to ensure a smooth, ergonomic profile free of sharp edges. Finally, both components receive a matching Radian Cerakote finish for a seamless appearance.