My search for my upper

[Scouts Out]

I am pretty sure I have a MH6601 lower but do not know what upper was put on my rifle.

The right side has-
Right Side of lower just has a
C and /F


The barrel has-
C MP
5.56 NATO 1/7

and for shits and giggles-
Left side of the lower-
Sporter
HBAR
CAL .223
MH 061XXX

Any help would be appreciated!!!

[MHL555]

Scout, Without photos I will take a guess. Your upper is a Colt A2 with the 20" Hbar barrel. Older models had a flash hider
but no bayonet lug. I have this same model that is a great rifle. Check out the site below. Safe shooting. Mark

Colt AR-15 Serial Number List