Once I've finished building my next Crosman pistol, it will need sights. Quite fancy trying a Red dot. Have looked at what JSR offer, in 25mm, 30mm and 40mm. Anyone have experience of any of these? Will be for plinking duties out to about 20 yards.

Other option is their pistol scope, but again, not used a scope on a pistol, so thoughts again.

Just want a change from open sights.

Thanks.
Paul.