18” Aero M4E1 Upper w/ Burris RT-6 Listing ID: 3030917

18” Aero M4E1 upper with a Ballistic Advantage .223 Wylde SPR barrel, Aero Atlas S1 15” handguard, VG6 Precision Gamma muzzle brake, Radian Raptor LT charging handle, Burris RT-6 with a Vortex mount, and a Magpul grip.
All that parts brand new cost around $1200, so $850 is a fair amount.