DEMO Evolution Gun Works HD CZ 457 11mm Picatinny Rail 20 MOA Black. The EGW CZ 457 Mount has full-length Picatinny cross slots to provide a solid platform for optics and other accessories. The EGW CZ 457 Scope Rail is a one-piece scope mount so it completely covers the receiver. The Picatinny rail slots run the full length of the rail which gives you plenty of accomodations for mounting Rifle Scope rings and other accessories. The EGW CZ 457 11mm Picatinny Rail is a great scope addition for anyone who wants to customize their CZ 457. Specifications for Evolution Gun Works HD CZ 457 11mm Picatinny Rail: Manufacturer: Evolution Gun Works Color: Matte Black Finish: Matte Black Hard Coat Anodize Fabric/Material: 7075-T6 Aircraft Grade Aluminum Quantity: 1 Gun Make: CZ Gun Type: Rifle Length: 6.276 in Height: 0.54 in Weight: 4.6 oz Included Accessories: #6-32 X 3/4 Screws Gun Rail: Picatinny Package Contents: Evolution Gun Works HD CZ 457 11mm Picatinny Rail Mountinghardware Evolution Gun Works 80932: HD CZ 457 11mm Picatinny Rail 20 MOA Black