Evolution Gun Works HD Picatinny Rail Blank Brownells 7075 Aluminum Black. HD Picatinny Rails from Evolution Gun Works delivers a lightweight yet durable material that will last for years to come. Evolution Gun Works HD Picatinny Blanks deliver the same level of quality that you come to expect from EGW mounts. Be sure to see the full line of EGW mounts along with mounts rings & bases from other top brands. Specifications for Evolution Gun Works HD Picatinny Rail Blank: Manufacturer: Evolution Gun Works Color: Black Finish: Matte Gun Rail: Picatinny Height: 0.35 in Condition: New Quantity: 1 Mount Type: Picatinny Attachment Type: Picatinny Features of Evolution Gun Works HD Picatinny Rail Blank: Highly durable material for tactical performance Available in steel or aluminum Package Contents: Evolution Gun Works HD Picatinny Rail Blank Evolution Gun Works HD Picatinny Rail Blank 7075 Aluminum NEW 89000