VLTOR MUR-1 10.5" upper custom

MUR-1 VLTOR WEAPON SYSTEMS custom upper. The following items are on the upper: Adams Arms piston kit; Rainier Arms UltraMatch .223 Wylde Barrel - 10.5", SAMSON Carbine length rail; VLTOR MUR-1 upper reciever. I only have about 150 rounds through the upper.