WHAT IS NP3?

The NP3 Option includes an NP3 finish on all the metal parts in the firearm EXCEPT for the frame, slide, and barrel. NP3 is a Nickel Teflon finish that adds lubricity, rust and corrosion resistance, and smoothness to all the components. When it comes to the trigger job, it makes the DA/SA a little bit smoother.

For a more technical explanation, check out Wright Armory: https://wrightarmory.com/np3-metal-finishing/

Check out this video about NP3 for a more in-depth description.