Rigid accessory mounting platform lets you install optics, ghost-rings, red dot sights, and other accessories on your Remington tactical shotgun. Precision milled from pre-hardened 4142 ordnance steel (Rc 28-32) to a true MIL-STD 1913 Picatinny cut with a rugged mil-spec manganese phosphate parkerized finish. Radiused underside fits contour of receiver for positive engagement along the entire length of the rail. Hole spacing matches pre-drilled receiver holes on factory Tactical models; other models may require drilling and tapping. Mounts securely to receiver with the hardened steel #8-40 TorxÂ® screws included in kit. Mfg: Badger Ordnance SPECS: Steel, parkerized finish, matte black. 5Â½â€ (14cm) long, .835â€ (21.2mm) wide, 5/16'''' (7.8mm) high. Fits Remington 870, 1100, and 11-87. Hole-spacing fits factory Tactical models; other models may require drilling and tapping of receiver.