I have little information about this UK company.
Image: Cover of Action Girl Pony Rider box, provided by Carol Peters.
Action Girl Pony Rider horse in brown
Images provided by Carol Peters. Carol comments: Action Girls horse. He is the same body mould as the Action Man horses made by Palitoy. An original Action Man horse with all his tack and boxed can fetch up to £350.
Action Man horse vintage box
Vintage Action Man box. Original production from 1966-1984. Available through Modellers Loft (UK retailer). Image provided by Melody Dowell.
Action Man horse 40th anniversary set
Limited to about 15 sets produced. Available through Modellers Loft (UK retailer). Image provided by Melody Dowell.