My bride and I each have an older Buckmark Target with the full rail.
She used hers with a red dot for bullseye and it was reliable and accurate. Mine is a plinking fun gun--I used a Hi Std trophy with a red dot, Herret grips and a muzzle brake for bullseye and she made me nervous a few times with her Buckmark.
The only thing I didn't like was the slide recoil spring rubber buffer. They tended to deteriorate over time and were a hassle, but they're great guns.