Serfas FMP 500 FTW.
I think FMP stands for BAMF Pump. Not sure why they got the letters in the wrong order. Everything leading up to the head is metal - brass fittings, metal braided hose. Durable stuff. Had several Topeaks that FORTUNATELY came from P* as they've all suffered failed seals - usually as I was topping up tires on the way out the door. Too many extraneous seals in the Topeaks for me to mess with them anymore!