The problem was that of all the threads they had,Truglo did not make invector chokes. Go figure.
Lots of big name stores just keep ordering what they did last year. ie. WalMart orders same number of 4s as 5s or 6s. They didn't even know that invector chokes were
available.So, what chokes were available were sold out when they started making those. You may also try MidWest Turkey Hunting Supply if Clark happens to not have one.
Knightrider has it right.