The CZ457 scope base is engineered to meet the demands of precision shooters, following the success of our previous CZ455 model. Crafted from a 1-piece of T7075 aluminum, this base is machined in-house on our advanced HAAS VF4SS 4-axis machining center, ensuring a perfect fit that slides securely onto the dovetail. Designed with a robust clamping mechanism, it guarantees that your CZ457 will remain firmly in place, even during intense shooting sessions. This base comes finished with a type III black hard-coat anodization, enhancing durability and corrosion resistance. It includes a necessary wrench for easily torquing the clamp screws, ensuring optimal installation. With a 30 MOA can't, this scope base is tailored for those looking to extend their 22LR range to 300 yd or more. Additionally, a 15 MOA option is available for varied shooting preferences. The rail features added real estate at the front, allowing for the forward positioning of your optic, which is particularly beneficial when using higher-powered scopes with smaller rimfire stocks. While slightly taller than traditional set-screw models adding approximately 1/2 inches to the dovetail height this design allows for compatibility with lower-height rings and mounts, maintaining an effective over-bore height for a comfortable cheek weld without requiring a riser. Thoughtfully designed, the base incorporates a built-in level to enhance shooting accuracy and the material is flared at the viewing area to facilitate optimal sighting while in the prone position. The CZ457 scope base combines precision, durability and user-friendly features, making it an ideal choice for discerning shooters.