This is an assembled heavy barreled AR-15 Carbine that uses a Colt Match Target Match HBAR lower receiver with an unmarked flattop upper receiver using a blackened Olympic Arms Stainless Ultra Match 1/8 twist 5.56 barrel; marked "1x8" next to "SUM/556", a blackened knurled aluminum tube forearm and flattop gas block. Mounted on the flattop upper is a Tasco 4-16x40 mm scope with elevation target turret and adjustable objective. The stock and pistol grip are a synthetic polymer and there is a Harris bipod attached to the front sling swivel stud.