Doh, I seem to have lost touch.

Interested in one of these guns, but specifically, it must be the type with the grip chequering that is two-pointed rather than single pointed, if that makes sense - i.e. the top of the chequering is a V shape not an arrowhead shape...

Would this be the Challenger? The pics of the Mercury S I can see have the arrowhead pointy chequering.