Circle Paintball existed in the later 90s to the early 2000s and produced mostly softgoods. They also produced had a barrel kit (at least) prototyped by Brahim Estephan. Paul Schreck was associated with Circle and I often label some of the products he makes (nelson bodies, Autococker trigger plates and Bob Long Back Block Cages) as Circle products.
Bob Long Autococker Back Block Cage remade!
Paul "Lucky Duck" Schreck had a few of these Cages remade for a couple Bob Long Autocockers we have and the final product looks great!