Just a FYI; from the B&W website for the non-slider Companion hitches.
"The Companion, with its single-point-attachment, utilizes the B&W Turnoverball under-bed mounting system. The Turnoverball works as a gooseneck hitch as well. Product Weight: Base 131 lbs, Coupler 75 lbs."
"The Companion OEM, designed to fit the new Ford OEM hitch platform, installs and removes easily with its two-piece design. Product Weight: Base 78 lbs, Coupler 75 lbs."
I knew the base unit of my setup weighed "the same" as the coupler unit
so I was curious and checked. There are two different setups (not counting the RAM OEM).