Egw Cz 452, 453, 455, 457, 511, 512 11Mm Hd Scope Bases 0 Moa

The EGW CZ 452, 453, 455, 457, 511, 512 11mm HD scope bases give you a modern Picatinny rail mounted directly to your rifle's receiver—no gunsmithing required. These one-piece scope bases fit CZ's rimfire and centerfire bolt-action platform using the factory 11mm dovetail scope mount holes, letting you drop in any standard Picatinny or Weaver scope rings without drilling, tapping, or permanent modifications. For shooters who want to upgrade their CZ's optics setup while keeping their options open, these bases bridge the gap between legacy dovetail mounts and today's modular ring systems.

Built from 7075 T6 extruded aluminum, these bases are precision-machined to MIL-STD 1913 specifications—the Picatinny slot-and-rail spacing is gauged to ±.002" for rock-solid repeatability. The Heavy Duty profile sits 0.100" lower than standard lightweight mounts, positioning your optic closer to the barrel centerline for flatter sight picture and potential accuracy gains, all while shaving weight. Whether you're setting up a rimfire for small-game hunting or zeroing a centerfire for longer ranges, the adjustable Picatinny mounting lets you dial in the exact eye relief your scope and shooting position demand.

Installation is straightforward: the bases use your rifle's existing receiver holes and come with socket-head Torx screws and wrench. EGW specifies 20 inch-pounds of torque and a dab of blue Loctite to keep things locked in place. Once mounted, you've got the flexibility to swap rings and scopes without hunting for shims or tweaking the base itself.

Key Features

• One-piece Picatinny rail—no drilling or tapping required
• Fits factory 11mm dovetail scope mount holes on CZ 452, 453, 455, 457, 511, and 512 rifles
• Accepts both Picatinny and Weaver scope rings for maximum compatibility
• Heavy Duty construction—.100" lower profile than lightweight bases
• Machined from aircraft-grade 7075 T6 aluminum
• MIL-STD 1913 specifications (±.002" tolerance)
• Includes socket-head Torx screws and wrench

Specifications

Frequently Asked Questions

Will these bases fit my CZ rimfire or centerfire rifle?

These bases are engineered for CZ 452, 453, 455, 457, 511, and 512 models and mount directly into the factory 11mm dovetail scope mount holes on the receiver. Confirm your rifle model matches the list above before ordering.

Can I use Weaver scope rings with these Picatinny bases?

Yes. While designed as Picatinny bases to MIL-STD 1913 specs, they are compatible with standard Weaver scope rings as well, giving you flexibility in ring selection.

What's included, and do I need anything else to install these?

The bases come with socket-head Torx screws, a Torx wrench, and installation hardware. You'll need a scope (with Picatinny or Weaver rings) and a way to apply 20 inch-pounds of torque. EGW recommends using blue Loctite on the fasteners.

How do Heavy Duty bases differ from the standard lightweight version?

Heavy Duty bases sit .100" lower than lightweight mounts, positioning your scope closer to the barrel centerline. This lower profile can improve sight picture geometry and may contribute to better accuracy without significantly adding weight.