CZ 457 Lux rimfire rifle with walnut stock, side view
CZ 457 Lux. Photo: Fanchigo, CC0, via Wikimedia Commons

457 Builds

The friendly, fully-sourced guide to building, fixing and enjoying the CZ 457 — proven builds, a parts planner, honest caveats and a community in the making.

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Did you know?

70+ years of lineage

The 457 descends from the Brno Model 1 (1945) and ZKM 452 (1954).

[GUNSMAG]
60° bolt

CZ cut bolt rotation from 90° (455) to 60° for scope clearance.

[GA19]
Lighter striker

The 457 striker is about 2/3 lighter than the 455's.

[MAN]
Swap calibers

One action can run .22 LR, .22 WMR and .17 HMR barrel sets.

[CZUS]
Asked for by coaches

The push-to-fire safety was requested by US Hunter Ed and 4-H instructors.

[GA19]
Most common at PR22 Worlds

The CZ 457 was the most common action in the 2023 IPRF PR22 World Championship survey.

[ST8]

Pick your path

New owner

  1. Read the quick-start
  2. Know the common issues
  3. ~$197 budget upgrade
  4. Browse the FAQ

Competitor

  1. NRL22 chassis build
  2. PRS/ELR premium build
  3. Plan your rig
  4. Find a match

Hunter

  1. Lightweight hunter build
  2. Suppressed compact host
  3. Threads & suppressors

Collector

  1. 452 → 455 → 457 history
  2. Collector notes
  3. Every variant & SKU

Tinkerer

  1. Two-caliber barrel kit
  2. Barrel swaps & headspace
  3. Build planner
  4. What makes it unique

Featured builds

Build #1

Budget range upgrade (Varmint, American or Synthetic SR in factory stock)

~$197

View build Open in planner

Build #2

NRL22 chassis build (Varmint / Pro-Varmint SR donor)

~$850

View build Open in planner

Build #3

PRS-rimfire / ELR premium build

~$2,590 (or ~$1,990 without Ckye-Pod)

View build Open in planner

All 6 builds →

Top upgrades

trigger

Timney CZ 457 trigger (CZ457 curved / CZ457-ST straight)

$174.99
high

Product links go to retailers and may be affiliate links; we may earn a commission. Prices as of Oct 2026. Affiliate disclosure

View at retailer

chassis/stock

KRG Bravo Chassis Rimfire - CZ-457 inlet

$399.99
high

View at retailer

scope mount

MDT Picatinny scope base - CZ 457 (20/30/40/50 MOA)

$69.99
high

View at retailer

magazine

MK Machining CZ 455/457 +3 extension (5+3 and 10+3 versions)

$17.49
high

View at retailer

magazine

Anarchy Outdoors CZ rimfire extended magazine release Gen II

$24.99
high

View at retailer

barrel

CZ (OEM) 457 MTR barrel sets: MTR 20in; MTR SR 16.5/20/24in; Long Range MTR SR 20in

399 (MTR 20) / 409 (MTR SR) / 355 (LR MTR SR) / 317 (Varmint MTR 20.6 threaded)
high

View at retailer

Shop by category

Chassis & stocks

19 parts tracked

Triggers

7 parts tracked

Scope mounts & rails

8 parts tracked

Magazines & mag accessories

14 parts tracked

Barrels & suppressor hosts

15 parts tracked

Small parts & accessories

9 parts tracked

Join the community

Community builds

Be the first featured owner build — submissions open at launch.

See how it works

Matches & events

Find NRL22 and PRS rimfire matches near you.

Match finders

Where owners hang out

Forums and subreddits worth joining.

Community hub

Honest caveats

  • Barrel swap headspace caveat: CZ markets 'user-swappable barrels', but its manual says Mini-set barrels must be fitted individually by a gunsmith with a headspace gauge. Headspace-check every swap.
  • CZ 455 stocks, triggers and rails do not fit the 457 (barrels and mags do interchange).
  • Suppressor law is in flux: $0 federal tax since 2026-01-01, but ATF registration/approval and state law still apply. Barrels under 16 in make an SBR under the NFA.
  • Trigger adjustments below the safe range are competition-only.
  • Prices are as of Oct 2026 — recheck before buying.