Check the listing for details. Carry Handle w/ Rear Sight + 20mm Top Rail See Through Scope Mount. Color: Black, Condition: New. Listed at 26.95 USD. Durable construction with steel and precision machined aircraft aluminumQuick and secure attachment with the large thumb knobsDual aperture L-shaped flip type sightsClick dials for precision windage and elevation adjustmentBlack anodize finish Fits all standard Picatinny / Weaver RailsDetachable see-thru flat top rail allowing for simultaneous use of iron sights and optics Specifications Dimensions：6.75" (length) x 1.75" (width) x 1.75" (height)Weight：10.8 ozTop Rail：Length: 5" （See Through） See Through Scope Mount (S10CH)Full Metal Scope Mount Base With QD NutDesign to raise up the mount base level Carry Handle TopAllow installation of Aiming Devise without removing carry handle'SEE-THROUGH' design allow using the original metal sight even with scope on20mm Standard Weaver Base take any scope mountsEasy to hook upAll Matt Black finish & Construct of Alloy MetalInstall any red dot or scope onto this 20mm scope mount baseDurable construction with steel and precision machined aircraft aluminumQuick and secure attachment with the large thumb knobsDual aperture L-shaped flip type sightsClick dials for precision windage and elevation adjustmentBlack anodize finish Fits all standard Picatinny / Weaver RailsDetachable see-thru flat top rail allowing for simultaneous use of iron sights and optics Specifications Dimensions：6.75" (length) x 1.75" (width) x 1.75" (height)Weight：10.8 ozTop Rail：Length: 5" （See Through） See Through Scope Mount (S10CH)Full Metal Scope Mount Base With QD NutDesign to raise up the mount base level Carry Handle TopAllow installation of Aiming Devise without removing carry handle'SEE-THROUGH' design allow using the original metal sight even with scope on20mm Standard Weaver Base take any scope mountsEasy to hook upAll Matt Black finish & Construct of Alloy MetalInstall any red dot or scope onto this 20mm scope mount base