I have a similar one - a Buckmark Camper with the same size barrel. Mine has rubber type grips - I like the feel a lot. Very easy to clean. Good gun!
I replaced the front sight with a fiber optic for about $25-$30. Just use the right size allen wrench to unscrew the old one and replace it (U will have to adjust the height on the rear sight after U swop out the sight in the front to a fiber optic).