Perhaps there is some confusion over the semantics
   There is ; Gun / Gun Related companies sponsoring a Team or particular Pro Shooter to compete in " regular " shooting competitions , while using their products , while wearing their logos,  and talking up the products .
   Lots of companies do / have done this . I know at one point " Team Springfield " was heavily promoted , unknown to me current status ?
   Then there is Glock :
    Glock created a whole League with multiple COF and divisions , a system of Regionals and championships , For the Grassroots OWNERS of their products  . This is probably Unique .
   As mentioned above SIGARMS has been doing " Promotional Range Day Events " . Where Sig owners and general public can test fire all the Sig Products , get face time with Sig brass and marketing people , get full availability of even hard to find Sig mags and accessories,  at special prices , etc . But not a competition .