A precisely machined high quality shotgun saddle scope mount for Remington 870, 1100 & 1187 Shotguns of 12ga and 20ga. Fits on the above Remington shotguns of 12ga and 20ga as well with included metal spacer strips. Extended release cut allows use of the mount on the shotguns shooting 3 1/2" shells and gives clearance needed for bolt handle travel of 1100 and 11-87 Works with full size scopes and red dot sights with standard Weaver or Picatinny rings or mount. Great for slug shooting or turkey hunting or tactical shotgun use Easy to install in existing pin ports on the receiver - no gunsmith or special tools required Solid one piece design of saddle style that straddles both sides of receiver. Top rail is of the popular more up-to-date Picatinny spec. and can work with red dot sights with integral Picatinny mount. The 6inch long top rail has 14 ring slots to adjust for most preferred scope or red dot sight placement. Anodized non-glare black matte finish