Colonial also does choke tube installs, however I have not seen any pros or cons on their work.
I was considering them because one of my Ithaca 16ga needs chokes and I already have a full set as Ithaca used the type that colonial produces back in the 70's, 80's and maybe 90's. The 2 16ga barrels that I bought (King Ferry Ithaca barrels) came with tubes that said Colonial on them.
Anyone have experience, good or bad, with Colonial that they would care to share ?