Howdy...this is my first post here...just need to know what is the blue label, green label, white label stuff with the Colt ar's?? What makes a GOVERNMENT model different???? Thanks...

Welcome aboard.

Generally, here goes:

Green label:  Preban, evil features, bayo lug, no lower sear block, regular sized trigger and hammer pins.

Blue label:  Preban, evil features but no bayo lug, lower sear block, oversized trigger and hammer pins (to keep you from putting evil M16 parts in there you evil person).

White label?  Dunno, but I suspect we're talking postban here.

Hope that helps . . .

Welcome aboard.

Generally, here goes:

Green label:  Preban, evil features, bayo lug, no lower sear block, regular sized trigger and hammer pins.

Blue label:  Preban, evil features but no bayo lug, lower sear block, oversized trigger and hammer pins (to keep you from putting evil M16 parts in there you evil person).

White label?  Dunno, but I suspect we're talking postban here.

Hope that helps . . .

Oh yeah, Government model has got everything a GI M16A2 has except selective fire.  Heavy barrel forward of the flash suppressor, 1/7 twist.

This site is a good general guide for Colt label variations, although there are always exceptions (like some Blue labels having the large pivot pin):

[url]http://www.biggerhammer.net/ar15/coltcolors.html[/url]