Plating choices to make
The "np3" plated on the frame, slide, barrel, & internal parts will "rock your world" !!!!! I have shot newly plated pistols that after about 50 rounds could be shot with no lubricant on the slide or frame rails. Firing residue wipes off with a towel. Barrel throats & feed ramps clean easily. The area around any "muzzle porting" wipes clean.
Yes, "np3" is expensive, but you are dealing with a plating company who is aerospace certified to plate airplane & outer space craft parts----how many other plates can make that substantiated claim?? None others that i am aware of.
Robar company & their "np3" plating is my personal hands-down favorite for handguns, rifles, & shotguns. They receive my personal "5-star rating", but that is only important to me, my family, & friends who have taken my advice in the past 25 years.
Guru1911