Power Armour Troops

With last nights painting blitz I was slightly side tracked by some power armored figures I've had sitting around for many years. I can't even remember who made these guys. I was never happy with the paint job they had, but now that they've been repainted I'm really impressed by the sculpt quality.

I think the weaponry looks like a heavy shotgun, a grenade launcher and a heavy plasma weapon. There's only three poses but I have enough for another three 3-man bases which should give a reasonable sized force with some pretty heavy firepower.

As I said, I've no idea who manufactured these so if anybody can shed some light it would be appreciated.