the Sperry Company was an electronics and machinery company. IRL it merged with a series of other companies and ended up under Unisys with part of its operations owned variably by lockheen, northrop, etc. their main claim to fame was in electro-mechanical instrumentation and mounting systems.
the 1940's,
Sperry Corporation developed a mounting system for
Browning .50 calibre M2 machineguns that enabled them to be used in a ball turret on the B-25 and B-17 bombers.
the M2 Browning has been built by a bewildering array of licensed manufacturers.
in Crimson Skies, those companies would still exist, just with their products employed differently. in BT evidently the sperry company continued on under its own name and developed a version of the browning MG suited to remote operation as part of a vehicle or mech.