Are Colt 6920's marked "M4" or ?

AR/M4 AR General Discussion
1

For all the guys with 6920’s are they marked M4, M4a1 or something else?
Appreciate the help. Trying to ID a lower.

2

Could be:

Colt’s Law enforcement carbine

M4 CARBINE

SPORTER
M4 CARBINE

3

They have been marked several ways recently.
Sporter.
M4 Carbine.
Colt’s Law Enforcement Carbine.

I’m sure there are a few others, but that’s what I can think of off the top of my head.

6920 Socom (heavy barrel) was marked M4A1.

4

I had the same question recently. I looked at GR Tactical and the ones he had posted up are labeled that way