They advertised them as A1s for some reason.
These are Anchor Harvey forgings and have rifle feed ramps.
The anodizing seems to have a "blue" to it.
Here it is in daylight compared to my OG Colts.
Top gun is a 1985 Sporter II upper, bottom gun is a 1991 Government Carbine, gun on right is a 1980 SP1.
The black handguard is for reference. The rear of the Bushmaster is oiled with Breakfree CLP, the front is dry.