Kinetic Development Group SIDELOK RMR Mount Low Profile Black. The lightweight 2.4 oz mount pairs with all models of RMR to carry an overall weight of 3.4 oz assembled. Made from high-strength billet 6061 aluminum the Kinetic Development Group Sidelok mount allows for instant attachment or detachment of the optic to the firearm. This is facilitated with no tools or adjustments can be accomplished with one hand even while wearing gloves and with 100percent repeatable return to zero These RMR Low Profile Sidelok Red Dot Sight Mounts are perfect for lightweight firearms and those that swap optics out for different shooting environments. This mount does not offer co-witness with any AR-15 style iron sights but will provide a lower profile setup for those using the mount on shotguns submachine guns belt-fed weapon systems etc. Specifications for Kinetic Development Group SIDELOK Low Profile RMR Mount: Manufacturer: Kinetic Development Group Color: Black Finish: Black Anodized Co-Witness: RMR-CO Red Dot Sights-Footprint: RMR Optic Cut: Not Applicable Length: 2.25 in Width: 1.1 in Height: 0.659 in Weight: 2.4 oz Condition: New Ring Type: Low Profile Features of Kinetic Development Group SIDELOK Low Profile RMR Mount: Specifications: Height (From top of Picatinny Rail): .659 Width: 1.10 Length: 2.250 Weight: 2.4 oz Features: No Co-witness (low profile) Finish: Black Anodized Compatibility: Trijicon RMR Red Dots or other compatible Red dots utilizing RMR style mounting base Package Contents: Kinetic Development Group SIDELOK Low Profile RMR Mount Kinetic Development Group SID5-231: SIDELOK RMR Mount Low Profile Black