Aero Precision m4E1 upper with 12.5in Ballistic Advantage mid-length Barrel chambered in 6.5 Grendel with a Forward Controls Designs flash hider/Dead Air mount. Has aero precision lightweight rail, currently covered by a winter hunting camo wrap. Currently has a Vortex Strike Eagle 1-6 power mounted. Great for a lightweight hunting/precision build. Low round count, and very accurate, even with cheap Wolf ammo. Comes with nitride BCG and radian charging handle. $600 for upper only, $900 with optic.