I'm getting bored with my recoilless pistols and fancy a spring pistol but don't really know what's on the market.

I know everyone raves about HW45's but what else is there just for a bit of informal target use to put a grin on yer face?

My criteria would be a decent trigger, something fairly compact that isn't huge and heavy and for a budget of up to £150 used.

Suggestions welcome please chaps......