VCS Rear Sight with RMR Mount for Remington Factory Holes (4- & 3-Hole Patterns)

Add a click-adjustable, wing-protected, ghost ring rear sight with integral co-witness RMR-pattern red dot mount to your factory-drilled and tapped shotgun receiver. The Vang Comp Rear Sight with RMR Mount, using the factory-supplied holes. The most durable and versatile combo rear sight/optic mount for factory Remington hole patterns. Allows co-witness with factory-installed Ghost Ring Front Sights (Vang Comp, Scattergun Technologies/ Wilson Combat, XS Sights, MMC). 1/2″ to 3/4″ Front Sight height-over-bore is ideal for a functioning co-witness. Compatible with any optic that is designed to mount to a Trijicon RMR footprint, including but not limited to:  Trijicon RMR/RCR/SRO, /Holosun 407c/507c/508t, Made in the USA Billet 6061-T6 aluminum MIL-A-8625 anodize (2) Receiver Mount and (6) Optic Mount Screws included Weight: 1.7 oz. NOTE: The fasteners provided are intended for use on a pump-action shotgun. Installing this optic mount with the supplied receiver mount screws onto a semi-auto shotgun may cause damage to the barrel.  Recommend professional gunsmith installation. Obviously, no optic is included in this purchase, just the Rear Sight/RMR combo Mount.  **Be aware that this is made for Remington factory holes, NOT the Vang Comp hole pattern for our Rear Sight with Rail (VC-103).   We’re working on a drop-in solution for folks with our VC-103 currently, but this VC-143 is not it.