You said it... You don't hear much about them... Obviously nobody else has either Why take a chance on them when there are known choke companys like Kicks,Comp-n-Choke, Undertaker, Tru-Glo...If you want a good choke get a Kicks Gobblin Thunder... I've got a Tru-glo for coper plated loads and a Undertaker for my Hevi Shot loads