re: Anderson rifles and RF85 technology

I've seen some tests where standard phosphate bolt carrier/anodized aluminum + CLP showed nearly the same or better adhesive and abrasive wear characteristics than some of the popular Ni/PTFE plating options out there. Some of the DLC coatings not only had superior wear characteristics but also survived days in a salt fog chamber and looked practically unchanged coming out. The challenge is finding something that is compatible with legacy systems. From an economics standpoint, it's much easier to just coat BCGs, buffer assy., and operational parts than all of that plus receivers. Problem is is that some coatings may make the wear on the BCG non-existent but increase the wear on the anodized aluminum receiver. To me that seems like a poor trade off and the DoD would say the same.