Leapers UTG Super Slim Picatinny RMR Mount 2 in 1 Combo Black. Includes 0.40 Low Profile & 0.87" Absolute Cowitness Mounts Specifications for Leapers UTG Super Slim Picatinny RMR Mount 2 in 1 Combo: Manufacturer: Leapers UTG Color: Black Finish: Matte Black Anodize Gun Make: Universal Gun Model: AR-15 Gun Type: Shotgun Rifle Fabric/Material: 6061-T6 Aircraft Grade Aluminum Co-Witness: Absolute Red Dot Sights-Footprint: RMR Optic Cut: Not Applicable Hand: Ambidextrous Length: 1.78 in Width: 1.1 in Height: 0.4 in 0.87 in Weight: 1.6 oz 1.4 oz 1.4 - 1.6 oz Condition: New Gun Rail: Picatinny Quantity: 2000 Features of Leapers UTG Super Slim Picatinny RMR Mount 2 in 1 Combo: Precision CNC Machined from 6061-T6 Aircraft Grade Aluminum and Finished in a Matte Black Anodize Utilizes Locking Torx Screws and Square-shaped Integral Recoil Stops for a Secure Zero Hold Significant Lightening Cuts Reduce Overall Weight and Bulk Includes RMR Mounting Screws and Installation Tools for a Simple and Friendly Installation 0.87in Saddle Height Positions Package Contents: Leapers UTG Super Slim Picatinny RMR Mount 2 in 1 Combo Leapers MT-RMRKIT: UTG Super Slim Picatinny RMR Mount 2 in 1 Combo Black