Egw Cz 452, 453, 455, 457, 511, 512 11Mm Hd Scope Bases 20 Moa

The EGW CZ 452, 453, 455, 457, 511, 512 11mm HD scope bases bring modern optics mounting to CZ's classic rimfire and centerfire rifles without drilling or tapping your receiver. Built from 7075 T6 extruded aluminum, these heavy-duty bases are precision-machined to accept both Picatinny and Weaver rings, giving you the flexibility to choose your preferred optic and adjust eye relief quickly and easily. The one-piece rail design keeps your scope closer to the barrel centerline, which translates to improved accuracy and a more compact sight picture—especially valuable on lighter-recoiling rifles where you want every advantage at distance or on the bench.

These mounts are purpose-built for shooters who want serious rigidity without unnecessary weight. The heavy-duty profile sits .100" lower than EGW's lightweight bases, offering a balance between durability and handling. The Picatinny slots are gauged to MIL-STD 1913 specifications (±.002"), so your rings will lock in precisely every time. Installation is straightforward—the bases are drilled to fit your factory scope mount holes, meaning you're mounting in minutes with the included Torx socket screws and wrench.

Whether you're setting up a 452 for small-game hunting, dialing in a 455 for precision rifle work, or running optics on a 511 or 512, these bases give you a modern, versatile platform that won't compromise the inherent accuracy of your CZ. The rigid aluminum construction and precision tolerancing mean your zero will stay put, round after round. EGW recommends 20 inch-pounds of torque and a drop of blue Loctite during installation.

Key Features

• One-piece Picatinny rail design—no drilling or tapping required
• Accepts both Picatinny and Weaver scope rings for maximum optic choice
• Precision-machined 7075 T6 aluminum for rigidity and lightweight performance
• Heavy-duty profile sits lower for improved sight line and closer barrel coupling
• Slots gauged to MIL-STD 1913 specifications (±.002") for consistent ring seating
• Fits factory scope mount holes on CZ receivers—easy installation
• Includes socket head Torx screws and hex wrench
• Fast, simple eye relief adjustment via Picatinny rail design

Specifications

Frequently Asked Questions

Which CZ rifles do these bases fit?

These EGW bases are designed for CZ 452, 453, 455, 457, 511, and 512 rifles. They mount directly to the factory scope mount holes on the receiver, so installation is straightforward and requires no gunsmithing.

Can I use both Picatinny and Weaver rings with these bases?

Yes. The Picatinny rail design is compatible with both Picatinny and Weaver scope rings, giving you flexibility in your optic choice and easy eye relief adjustment.

Do I need to drill or tap my rifle to install these bases?

No. These bases are drilled to fit the factory scope mount holes on your CZ receiver, so installation requires no drilling, tapping, or gunsmithing—just the included Torx screws and wrench.

What's included in the box?

The bases come with socket head Torx screws and a hex wrench for installation. EGW recommends applying a small amount of blue Loctite to the screws and torquing them to 20 inch-pounds.