it is not labeled a psa. They sell it but it has no logo or brand.I’m not an expert on PSA’s BCG’s, so I can’t comment on their overal quality. However, folks that I trust very much don’t have a lot of good to say about them.
I do prefer Robar NP3 to NiB or hard chrome. NP3 is layers of nickel and PTFE (Teflon). As the part wears, it exposes fresh Teflon. I’ve owned numerous firearms and parts over the years with NP3 coating, I’m a big fan.
You answered what I was asking. I am not familar with np3 and really didnt know where to start asking. But thanks, That was exactly what i needed to know.