I'd have to check but I thought the order of introduction was:
386 SC (MountainLite)
386 PD
386 SC/S
386 NG

At least that is how they hit the shelves at my local shop.

The grips are the stock Hogue Bantam? The easiest way is to use the little wedge tool. If you call S&W they will send you one.

If not you can use a thick old credit cards at the bottom to pry the grip off the prong on each side and slide the entire grip off.

__________________
NRA Certified Instructor