Under the foregrip mount on the re-
ceiver is the "Hidden Serial Number"
location, which at first look appears to
match the other receiver serial numbers
for 13184, along with the "N" letter code
Upon closer examination of these stamp-
ing the first number one appears to be an
overstamp of a number 4. Yes, even Colt's
employees make mistakes. The original
serial number stamped appears as 43184.
This optimistic serial number mistake
was corrected with the number 4 being
overstamped with the correct number of
It is always interesting to study our col-
lections and listen to what they can tell