There are pics on this site. I used them to cut my handle off. I used a hand saw and dremmel to improve looks. I bought a metal airsoft rail. Way cheaper than a gun rail. $50 cheaper.
Used a washer larger than the stock washer supplied with the rail. Had to dremmel out a support inside the housing but it wasn't bad. Just a warning, everytime you clean your gun and take it apart, you will lose your zero on the rail. That's why I bought a flat top when they came out.
Being honest, cutting the handle is great but it's also a pain to keep the rail straight and zeroed.