Pete’s Pillars CZ 455 / 457 / 512 Radiused Aluminum Magazine Well Spacer Block
Make magazine insertion easier with a radiused aluminum magazine well block for the CZ 455, CZ 457, and CZ 512. Designed for .22 LR applications, the enlarged radiused opening helps guide the magazine into position with less precise alignment than the factory-style spacer block.
The smoother lead-in makes magazine changes quicker and more forgiving whether you’re shooting a competition, working through magazines at the bench, or loading your CZ in the field while wearing gloves.
Each CZ magazine well spacer block is CNC machined from billet 6061 aluminum and finished in black anodizing for a clean, durable replacement for the factory plastic component. The radiused profile adds useful guidance around the magazine opening without changing the basic function of the original .22 LR magazine block.
For competition shooters, the easier magazine entry can help make reloads smoother when time matters. For everyone else, it’s simply a small improvement you notice every time you insert a magazine.
We also include a bonus stainless retaining pin at no additional charge for added convenience during installation.
The factory plastic magazine well spacer can wear, deform, or vary over time, introducing another variable into magazine positioning and cartridge presentation.
Our CNC-machined billet aluminum block provides a crisp, consistent fit with far less material variation than a worn plastic spacer. By helping maintain more repeatable magazine positioning, it removes one potential source of inconsistency from the feeding and extraction cycle.
A worn or distorted spacer is only one of several factors that can contribute to weak or unreliable extraction, but eliminating unnecessary movement and variation is a simple place to start.
Small change. Less variation. More consistency.
Features:
- Radiused magazine opening helps guide magazines during insertion
- Easier, more forgiving CZ 457 magazine changes
- Useful for competition, bench shooting, hunting, and field use
- Easier magazine insertion while wearing gloves
- CNC machined from billet 6061 aluminum
- Durable black anodized finish
- Fits CZ 455, CZ 457, and CZ 512
- Designed for .22 LR magazine applications
- Replaces the factory plastic magazine well spacer block
- Bonus stainless retaining pin included at no additional charge
- Installation requires basic mechanical or gunsmithing knowledge
- Replaces CZ factory part number 311233804014
Small change. Big convenience.
| Brand | Pete's Pillars |
| Gun Platform | CZ 457 |
| Material | Aluminum |