DIP CZ 452 / 453 / 455 / 457 EXTENDED MAGAZINE CATCH
A Little More Reach for Faster Mag Changes.
The DIP (DiProducts) CZ19054 replaces the factory CZ magazine catch with a solid steel part, machined from stock rather than cast or MIM, and hot blued to match the rifle. It sits about 0.080″ (2mm) longer than factory for an easier, faster release on the CZ 452, 453, 455, 457 and 512.
The factory CZ magazine catch is short and easy to miss, especially with gloves on or from an awkward shooting position. A longer catch puts the release where your finger finds it. The DIP CZ19054 adds a modest extension while keeping a factory-like look. Use it for: hunting and field rifles, trainers, and any CZ that needs a slightly easier mag release.
Our Take: Want Real Reach?
Our Take
Pete's Pillars PP457MRB Extended Bumpy Magazine Release
If you want a release you can find without looking, ours goes further. The PP457MRB reaches about 0.40″ past factory, roughly five times the extension, with machined bumpy serrations for a positive, no-slip press with gloves on or in the cold. It's CNC-machined from solid steel, case hardened and blued, and made in the USA by Pete's Pillars. Prefer a clean face? The PP457MRS Smooth Release gives you the same reach with a flat surface.
See the PP457MRB →Upgrade the Whole Mag Change.
The release is one piece. A better spacer and mag well make every magazine seat smoother.
PP457MRB Bumpy Release0.40″ extra reach, made in USA
PP457MRS Smooth ReleaseSame reach, flat face
PP457SR Radiused SpacerWider lead-in for gloved mag changes
Replacing the mag well too? See our PP457MW and PP457SB Spacer Block, or the DIP CZ19048 Aluminum Mag Well. Feed it with billet magazines from L3i in 10 and 13 rounds and Position7 in 10 and 13 rounds, or the factory CZ 10-Round Magazine.
Made in USA by Pete's Pillars
Complete the Bolt Refresh
Direct from the shop CZ 457 shooters trust. Scroll for every upgrade.
Made in USAPete's PillarsPP457FP-T Firing PinThe CZ 457 part we're known for.Shop Now →
Made in USAPete's PillarsPP457LCI Cocking IndicatorExtended stainless indicator you can see and feel.Shop Now →
Made in USAPete's PillarsPP457ES Extractor SetUpgraded extractor and holder for positive extraction.Shop Now →
Made in USAPete's PillarsPP457SP2 Gen 2 SpringStronger extractor and holder spring.Shop Now →
Made in USAPete's PillarsPP4KG Bolt KnobSlim knurled, grooved billet knob.Shop Now →
Made in USAPete's PillarsPPFG-L XL Finger Groove KnobDeep finger groove, aggressive knurling.Shop Now →
Made in USAPete's PillarsPP457MRB Mag ReleaseExtended, serrated for gloved mag changes.Shop Now →
Made in USAPete's PillarsPP457SR Radiused SpacerWider lead-in for smoother mag insertion.Shop Now →
Made in USAPete's PillarsPP45715 15 MOA RailDovetail to solid Picatinny.Shop Now →
Made in USAPete's PillarsPP457FP OEM-Style Firing PinRecommended for magnum rimfire.Shop Now →
Pair It With a Match Barrel
The Next Step for Your CZ 457
Pete's Pillars, Lilja and L3i match barrels for the CZ 455/457, or start fresh with a match-chambered barreled action.
Pete's PillarsPete's Pillars 22″ Threaded Match Barrel.960 stainless, MTR chamber, 1/2-28 threads.Shop Now →
Pete's PillarsPete's Pillars 26″ .960 Match BarrelLonger stainless .960 contour, MTR chamber.Shop Now →
LiljaLilja 24″ 1.180″ Bull BarrelHand-lapped 3-groove, Lilja 3 match chamber.Shop Now →
L3iL3i 24″ Drop-In Match Barrel1.180″ 416R with the Wasp Match Chamber.Shop Now →
CZCZ 457 Varmint MTR Barreled ActionStart fresh: MTR chamber, 20.5″ heavy barrel.Shop Now →
Did You Know?
Pete's Pillars Carries More Than CZ 457 Parts.
From centerfire chassis to optics and reloading, outfit every rifle in the safe in one place.
Optics & Mounts
Bipods & Magazines
Product Specifications
Manufacturer: DIP (DiProducts)
Product: Extended Magazine Catch #19
MPN: CZ19054
Compatible Rifles: CZ 452, 453, 455, 457 and 512 Rimfire
Material: Solid Steel (not cast or MIM)
Finish: Hot Blued
Extension: Approx. 0.080″ (2mm) Longer than Factory
Installation: No Gunsmith Required; Directions Available Online
Frequently Asked Questions
Fitment, extension length and choosing the right CZ mag release.
Which rifles does the CZ19054 fit?
DIP lists it for the CZ 452, 453, 455, 457 and 512 rimfire rifles.
How much longer is it than factory?
Which is better, the DIP CZ19054 or the Pete's Pillars PP457MRB?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. The DIP is a solid, subtle upgrade. Of course, we're partial to ours: the PP457MRB gives you about five times the extension, machined serrations for grip, and it's made in the USA by Pete's Pillars.
Bumpy or smooth?
Does it require a gunsmith?
No. DIP says no gunsmithing is required, and directions are available online.
Does it work with aftermarket mag wells?
Extended releases pair well with our PP457SR and PP457SB spacer blocks and the DIP CZ19048 Mag Well.
What else should I upgrade on my CZ 457?
Start with our PP457FP-T Firing Pin, the part CZ 457 shooters know us for, and see everything in our CZ 457 Parts Collection.
Small Change. Big Impact. Pete's Pillars.
DIP CZ 452 / 453 / 455 / 457 EXTENDED MAGAZINE CATCH
A Little More Reach for Faster Mag Changes.
The DIP (DiProducts) CZ19054 replaces the factory CZ magazine catch with a solid steel part, machined from stock rather than cast or MIM, and hot blued to match the rifle. It sits about 0.080″ (2mm) longer than factory for an easier, faster release on the CZ 452, 453, 455, 457 and 512.
The factory CZ magazine catch is short and easy to miss, especially with gloves on or from an awkward shooting position. A longer catch puts the release where your finger finds it. The DIP CZ19054 adds a modest extension while keeping a factory-like look. Use it for: hunting and field rifles, trainers, and any CZ that needs a slightly easier mag release.
Our Take: Want Real Reach?
Our Take
Pete's Pillars PP457MRB Extended Bumpy Magazine Release
If you want a release you can find without looking, ours goes further. The PP457MRB reaches about 0.40″ past factory, roughly five times the extension, with machined bumpy serrations for a positive, no-slip press with gloves on or in the cold. It's CNC-machined from solid steel, case hardened and blued, and made in the USA by Pete's Pillars. Prefer a clean face? The PP457MRS Smooth Release gives you the same reach with a flat surface.
See the PP457MRB →Upgrade the Whole Mag Change.
The release is one piece. A better spacer and mag well make every magazine seat smoother.
PP457MRB Bumpy Release0.40″ extra reach, made in USA
PP457MRS Smooth ReleaseSame reach, flat face
PP457SR Radiused SpacerWider lead-in for gloved mag changes
Replacing the mag well too? See our PP457MW and PP457SB Spacer Block, or the DIP CZ19048 Aluminum Mag Well. Feed it with billet magazines from L3i in 10 and 13 rounds and Position7 in 10 and 13 rounds, or the factory CZ 10-Round Magazine.
Made in USA by Pete's Pillars
Complete the Bolt Refresh
Direct from the shop CZ 457 shooters trust. Scroll for every upgrade.
Made in USAPete's PillarsPP457FP-T Firing PinThe CZ 457 part we're known for.Shop Now →
Made in USAPete's PillarsPP457LCI Cocking IndicatorExtended stainless indicator you can see and feel.Shop Now →
Made in USAPete's PillarsPP457ES Extractor SetUpgraded extractor and holder for positive extraction.Shop Now →
Made in USAPete's PillarsPP457SP2 Gen 2 SpringStronger extractor and holder spring.Shop Now →
Made in USAPete's PillarsPP4KG Bolt KnobSlim knurled, grooved billet knob.Shop Now →
Made in USAPete's PillarsPPFG-L XL Finger Groove KnobDeep finger groove, aggressive knurling.Shop Now →
Made in USAPete's PillarsPP457MRB Mag ReleaseExtended, serrated for gloved mag changes.Shop Now →
Made in USAPete's PillarsPP457SR Radiused SpacerWider lead-in for smoother mag insertion.Shop Now →
Made in USAPete's PillarsPP45715 15 MOA RailDovetail to solid Picatinny.Shop Now →
Made in USAPete's PillarsPP457FP OEM-Style Firing PinRecommended for magnum rimfire.Shop Now →
Pair It With a Match Barrel
The Next Step for Your CZ 457
Pete's Pillars, Lilja and L3i match barrels for the CZ 455/457, or start fresh with a match-chambered barreled action.
Pete's PillarsPete's Pillars 22″ Threaded Match Barrel.960 stainless, MTR chamber, 1/2-28 threads.Shop Now →
Pete's PillarsPete's Pillars 26″ .960 Match BarrelLonger stainless .960 contour, MTR chamber.Shop Now →
LiljaLilja 24″ 1.180″ Bull BarrelHand-lapped 3-groove, Lilja 3 match chamber.Shop Now →
L3iL3i 24″ Drop-In Match Barrel1.180″ 416R with the Wasp Match Chamber.Shop Now →
CZCZ 457 Varmint MTR Barreled ActionStart fresh: MTR chamber, 20.5″ heavy barrel.Shop Now →
Did You Know?
Pete's Pillars Carries More Than CZ 457 Parts.
From centerfire chassis to optics and reloading, outfit every rifle in the safe in one place.
Optics & Mounts
Bipods & Magazines
Product Specifications
Manufacturer: DIP (DiProducts)
Product: Extended Magazine Catch #19
MPN: CZ19054
Compatible Rifles: CZ 452, 453, 455, 457 and 512 Rimfire
Material: Solid Steel (not cast or MIM)
Finish: Hot Blued
Extension: Approx. 0.080″ (2mm) Longer than Factory
Installation: No Gunsmith Required; Directions Available Online
Frequently Asked Questions
Fitment, extension length and choosing the right CZ mag release.
Which rifles does the CZ19054 fit?
DIP lists it for the CZ 452, 453, 455, 457 and 512 rimfire rifles.
How much longer is it than factory?
Which is better, the DIP CZ19054 or the Pete's Pillars PP457MRB?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. The DIP is a solid, subtle upgrade. Of course, we're partial to ours: the PP457MRB gives you about five times the extension, machined serrations for grip, and it's made in the USA by Pete's Pillars.
Bumpy or smooth?
Does it require a gunsmith?
No. DIP says no gunsmithing is required, and directions are available online.
Does it work with aftermarket mag wells?
Extended releases pair well with our PP457SR and PP457SB spacer blocks and the DIP CZ19048 Mag Well.
What else should I upgrade on my CZ 457?
Start with our PP457FP-T Firing Pin, the part CZ 457 shooters know us for, and see everything in our CZ 457 Parts Collection.
Small Change. Big Impact. Pete's Pillars.
| Brand | DIP |
| Gun Platform | CZ 457 |
| Type | Magazine Release |