Rail Type: One Piece Picatinny Machined from: Domestic 6061 T6 Extruded Aluminum Finish: Matte Black Anodizing Center Spread: 4.63" Overall Length: 7.458" Height: .4" (Top of Receiver to Top of Picatinny) Weight: 2 oz. Quick Disconnect Ring Compatible: No Ambidextrous: Yes Torque Specs: 20 in/lbs Mounting Hardware: #6-48 X 1/4 Screws and T-10 Bit Included