Yes, the Remington Nitro / Royco is the newer mil-spec CLP that doesn't contain PTFE/Teflon.
Personally, I've never had a problem with CLP in the barrel.
However, Militec-1 does appear to lubricate the parts better and not attract dust/dirt as much as CLP. It doesn't have as good of corrosion protection as CLP though.
I buy CLP at Walmart for $3.87/aerosol can. I don't think I can get it cheaper anywhere else...