As promised, here are some pix of mine. SN was GS 000178 so I guess Colt did this run to kick off the new (at the time) A2 Government Model, which at the time was the first with full A2 configuration (but on a slab-side SP1 lower). At some point they ran out of A1 uppers and the Sporter II transitioned over to the A2 upper, so there was no need for a separate Government Model because they were the same thing. That's just my theory - not sure when they stopped making the old lowers and started making AR-15s with A1/A2 lowers.
Note the availability on the sell sheet is "Mid-Year 1988" so at least we have some idea as to when these were made. Also, note that the camo Ace Case did come with this model.
"Z-Coat green tiger stripe camoflage" for use in "heavy cover." Gotta love it.
Some of you nit-pickers may have noticed that the serial on the label isn't the same as mine, but...
you get to see what a Z-Coat label looks like, and
we may deduce that, if the serial numbers were continuous (always iffy with Colt) at least 808 of the Z-Coat Government Models were probably made.