The Area 419 CZ455 1913 Improved Scope Rail 7075 Aluminum 15MOA Type III Black from Area 419 Firearms LLC is a single?piece, machined-in-house base designed to solve the common issue of CZ455 scope bases sliding or shifting over time. Crafted from T7075 aluminum and finished with a Type III black hardcoat, this 15MOA rail clamps securely to the CZ455s 11mm dovetail via a front and rear recoil?lug arrangement that creates a consistent clamping force across the entire rail, ensuring your optic stays locked in under recoil. A built?in mechanical rear stop further enhances security, while the included 2.5mm wrench and a recommended torque of 22 in/lb (2.5 NM) provide precise installation. The rail is intentionally taller to add front rail real estate, enabling an forward optic position that preserves proper cheek weld with higher powered scopes on compact rimfires, and it features a mid?rail opening design and a built?in level for stable aiming in prone positions. This 30MOA cant is tailored for extended range use on 22LR platforms, and the design is compatible with CZ452 as well, offering robust, repeatable performance without the compromises of traditional set?screw bases.