My home built KISS Carbine.
It's a Superior Arms lower with a Stag Arms lower parts kit.
The barrel is a 1/9 Bushmaster Superlite.
The A1 upper is a Colt from a m16 teardown I got at a gun show.
4 position stock is a Model 1, and the pistol grip is a used m16A1 grip.
I refinished it with Norrell's dark grey, to match all the different components.