I'm curious why Colt calls the AR6520 the "Government Carbine" ?

Is/Was it used by government agencies at one time ?

Quoted: I'm curious why Colt calls the AR6520 the "Government Carbine" ? Is/Was it used by government agencies at one time ?

It's one of Colts law Enforcement Carbines.

All the Colt LE models have had the restricted rollmark in the bottom image since the ban - it's just a curiousity now.

I think he knows that-but he is wondering why GOVERNMENT Carbine-was it use by our GOVERNMENT at one time?

Probably like the "Government Model" .45 ACP ...

I can only guess here (which is pathetic, since I own a 6520), but the barrel diameter is the same as the original government M16 and M16A1 barrels. The "government carbine" name was around well before the 1994 AWB, and may have been around before the M16A2 was adopted, so it's possible that the name just stuck to carbines with the original, lighter profile barrel.

Again, that's just a theory - I don't know for sure.