Area 419 Scope Base Features The Area 419 Scope Base is machined in-house from a single piece of T7075 aluminum on Area 419 s own 4-axis machining center producing a one-piece Picatinny/Weaver style base purpose-built for the CZ457 s 11mm dovetail. The base slides onto the dovetail and clamps down with a consistent force across the entire rail ensuring the mount will not shift or budge even under recoil from repeated firing. A Type III black hardcoat anodized finish protects the aluminum from wear and corrosion through years of range use. The included wrench allows the clamp screws to be torqued correctly during installation giving the shooter confidence the base is secured properly from the start. Built with a 30 MOA cant this base is designed for shooters extending their rimfire rifles out to 300 yards or more giving extra elevation adjustment range before the scope s internal travel is exhausted. Area 419 added extra material to the front of the rail specifically to let the optic be moved forward which helps balance a longer heavier scope against the smaller stock typical of a rimfire platform. While this base sits slightly taller than popular set-screw style mounts pairing it with lower height rings allows the shooter to maintain a similar bore height and good cheek weld without needing a riser. The Area 419 Scope Base for CZ457 is a precision rimfire mounting solution available for sale at GrabAGun. Area 419 Scope Base Specifications Manufacturer: Area 419 Model: Scope Base Compatible Hosts: CZ457 Color: Black Material: Aluminum Mount Type: MIL-STD 1913 Picatinny/Weaver Cant: 30 MOA Pieces: 1-Piece Length: 8.4 Height: 1.1 Weight: 0.205 lb Warranty: Manufacturer Limited Lifetime Available At: GrabAGun