Position7 CZ 457 Parts · Billet Magazines · Scope Bases
Position7 builds competition upgrades for the CZ 457, machined from billet for shooters who want a rimfire that runs as precisely as it shoots. As an authorized Position7 dealer, we carry the CZ 457 Pro Scope Base, billet magazines, magwell kits, firing pins and extractor sets.
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Scope bases, magazines, magwells and action parts.
CZ 457 Pro Scope Base
A 30 MOA clamp-on 7075 billet base with a brass case deflector, built-in bubble level and right or left hand versions.
Shop Scope BaseBillet Magazines
CZ 457 billet aluminum 22LR magazines in 10 and 13 round capacities.
Shop P7 MagazinesMagwell Kits & Spacers
Billet magwell kits for the CZ 457 and magwell spacers for KRG Bravo and Vision chassis.
Shop MagwellsFiring Pins
Competition and MultiCaliber CZ 457 firing pins for consistent ignition.
Shop P7 Firing PinsExtractors
The CZ 457 extractor and holder set for reliable extraction.
Shop P7 ExtractorsFind your Position7.
Position7 parts are made to turn the CZ 457 into a competition rimfire. Pick the upgrade, then confirm fitment and handedness on the product page.
Upgrade the Rifle
Barrels, triggers and chassis to build out your CZ 457.
Accessories & Gear
Magazines, controls and support gear.
Round Out Your CZ 457
Position7 covers the magazines, magwell and mount. Pete's Pillars covers the rest of the details: a billet bolt knob, an extended magazine release, a match barrel and the small action parts that sharpen a factory CZ.
Building With Position7
Mount it solid
The CZ 457 Pro Scope Base clamps the factory dovetail with a one-piece system and no top set screws, adds 30 MOA of cant for extended range, and includes a brass deflector and bubble level.
Feed it reliably
Billet aluminum 10 and 13 round magazines and a magwell make reloads faster and more consistent under the clock.
Sharpen the action
A competition firing pin and an upgraded extractor set help the CZ 457 ignite and extract consistently, shot after shot.
Finish the build
Pair your Position7 parts with a match barrel, a trigger and a chassis for a complete NRL22 or PRS rimfire rifle.
Position7 FAQ
Does the Pro Scope Base need drilling or top screws?
No. The CZ 457 Pro Scope Base is a one-piece clamping system that slides onto the factory dovetail and locks in place without top set screws.
Is there a left-hand Pro Scope Base?
Yes. The Pro Scope Base is available in right and left hand versions. Choose the one that matches your rifle.
Will Position7 magazines work in my chassis?
Position7 billet magazines are made for the CZ 457. Most chassis that accept CZ 457 magazines will accept them, and Position7 makes magwell spacers for the KRG Bravo and Vision chassis. Check your chassis fitment.
Which Position7 firing pin should I choose?
The Competition firing pin is built for match rimfire. The MultiCaliber firing pin is designed for shooters who run more than one caliber on the CZ 457 platform.
Keep Building
More from the bench.
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Every CZ 455 and 457 upgrade we carry, including our own parts.
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Pete's Pillars, Position7, L3i and Area 419 CZ 457 rails and bases.
Shop RailsRifle Magazines
AICS, PMAG, rimfire and pistol magazines and magazine parts.
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Every manufacturer we carry in one place, from MDT and Volquartsen to our own USA-made parts.
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