Cleaning up 15mm stuff from years ago, in this case a pair of Ravenstar Studio's resin grav vehicles.
The turreted one is a Mercury fast grav tank. Three piece model, sells for $16.
It's smaller cousin is the older original sculpt of the Passer grav APC. Single piece, and the very similar newer version sells for $13 each, or $30 for a set of three.
Main difference between the old and new Passer sculpts are the rear, where the newer one takes off the steps down from the hatch and replaces it with a kind of air scoop.
Good sized vehicles, particularly the APC which looks big enough to comfortably carry a squad in power armor.