Magennis bits are a square mouthed with horizontal copper rollers. They have a bit of an edge and are very fast-acting across the mouth as the rollers allow for smooth side to side action.
This type of gag tends to produce more gag leverage because the mouthpiece can continue to move up and react again when you pull on the reins. This specialty bit has gag loops on the outside of the ring versus the interior of the gag.
Made in the USA in partnership with Maheu Custom Bits