First of all - anyone have pictures of this (or a similar) setup?  What aftermarket rail/mount did you use for the FFIII?  Right now I have only changed the barrel so will need some sort of rail to mount the optic on it.  Recommendations of any to consider...or any to avoid?

My Buckmark has a factory 4.4" threaded barrel.   I replaced the front sight with a TruGlo fiber optic sight.   I replaced the top rail with one from Tactical Solutions including an adjustable rear sight.   After zeroing the new front and rear sights, I added and zeroed a Weaver red dot on the TacSol rail.   Along the way, I removed the factory finger groove URX grips.   (Gosh, those grips suck and negatively impact reliability.)   I replaced them with custom grips.

All factory internal parts resulting in a 2 to 2.5 pound trigger pull.