My old Glen Pearce Model 70 custom in .300 Win. Mag. has the receiver, bolt, trigger group, and bottometal finished in NP3. The receiver was finished inside and out. I've had this rifle in all sorts of weather - both dry and hot, as well as cold and wet - and that finish is just as good today as it ever was. No rust, ever, not even a spot, and the action works as slick as grease.

One caution with NP3: You should have your gunsmith go in with a tap and chase out the scope mounting hole threads after you get the metalwork back from Robar. NP3 is so slick that scope screws have a tendancy to back out, even if Loctite has been applied.

AD

I am getting ready to send two 1911's to get NP3 and they recommended to leave them assembled, if I did disassemble they wanted an itemized parts list. That said, if you send assembled and have any "loctited" there is an extra charge.
Jason

I have a couple of rifles that were built by ROBAR.

The Roguard is a black teflon type finish and normally used on the exterior surfices while NP3 is used on the bolt and internal surfaces.

I have a rifle that is all NP3 and I love it.. It has the apperance of very dull stainless, but it is not as reflective as you might think.

NP3 is extremly durable.

I have a Dakota that has the black teflon finish from Dakota and it has not held up as well as the Roguard on my other rifles.

GPT


GPT

My Lazzeroni 9.53 Hellcat is 100% NP3 and it's great. Non-reflective and slicker than owl shit.