CoSight Optic Adapter w/ Integrated Backup Sight Mounts

CoSight is a low-profile RMR-cut optics adapter for Mossberg shotguns with drilled and tapped receivers.  What makes CoSight unique is that it integrates G17-type Glock-compatible handgun sight mounts into a 1-piece adapter system to provide Back Up Iron Sight (BUIS) and co-witnessing capabilities. Weighing only 2.5 oz, the Cosight adapter is machined from solid 304 billet stainless steel and is finished in an Armor Black Cerakote coating.  Weight reduction pockets have been machined into the underside of the adapter to achieve its light weight, while the stainless steel body provides maximum strength around the optic mounting threads and rear dovetail mount. Utilizing the array of G17-type Glock-compatible handgun sights on the market, users can choose various sight types from plain black to white-dot to tritium night sights.  Users can also select the height of their sights for different co-witnessing schemes.  CoSight has been designed so that standard height Glock-compatible sights