Evolution Gun Works Scope Mount Extrusion Drops Gunsmith Action IPSC. Compatible with most rear sight base designs this Rifle Scope Base from the specialists at Evolution Gun Works offers a strong and secure hold for all of your shooting needs. The unfinished silver color of the EGW Aluminum Scope Rifle Scope Mounting Rail allows you to create the look that you want for your gun without the huge cost that comes with engraving or adding a coating that might interfere with the finish. The ideal solution for custom scope mounts the Evolution Gun Works Aluminum Rifle Scope Mounting Rail is a cost-effective way to mount scopes. Specifications for Evolution Gun Works Scope Mount Extrusion Drops Gunsmith: Manufacturer: Evolution Gun Works Color: Black Finish: Matte Height: 0.4 in Condition: New Ring Type: Picatinny/Weaver Features of Evolution Gun Works Scope Mount Extrusion Drops Gunsmith: Unfinished silver Ideal solution for custom scope mounts Package Contents: Evolution Gun Works Scope Mount Extrusion Drops Gunsmith Evolution Gun Works 10 inch Long Black Picatinny Rail Scope Mount Extrusion w/ Slots