DIP CZ 455 / 457 REPLACEMENT ALUMINUM MAGAZINE WELL
Replace the Plastic. Feed with Confidence.
The DIP (DiProducts) CZ19048 replaces the CZ 457's factory polymer magazine well with a CNC-machined 6061 aircraft aluminum part, finished in mil-spec hard coat black anodizing. It's the fix for a broken or deformed factory mag well, and a durable upgrade for any CZ 457 that sees a lot of magazine changes.
The factory CZ magazine well is polymer, and with heavy use, a hard drop or a tight chassis it can crack, deform and start causing feeding and seating problems. An aluminum mag well gives the magazine a rigid, consistent home every time it locks in. Use it for: replacing a damaged factory mag well, NRL22 and PRS Rimfire rifles, and high-round-count trainers.
Our Take: The Pete's Pillars PP457MW.
Our Take
Pete's Pillars PP457MW Aluminum Magazine Well
With more than six years building and supporting CZ rimfire rifles, the magazine well is a part we know inside and out. Our PP457MW replaces the factory polymer mag well with machined aluminum, made in the USA by Pete's Pillars, and pairs with our extended mag releases and spacer blocks for a complete feeding upgrade.
See the PP457MW →More Billet Mag Well Options.
Building a competition rifle? These billet mag wells are favorites on the match line.
Pete's Pillars PP457MWAluminum mag well, made in USA
L3i CZ 457 Billet Mag WellBillet aluminum for the CZ 457
Position7 Magwell Kit7075 aluminum with ejector insert
Complete the Feeding Upgrade
A better mag well works best with a better release and spacer. These Made-in-USA Pete's Pillars parts finish the job.
Made in USAPP457MRB Mag Release
Extended, serrated release for gloved mag changes.
View Product
Made in USAPP457SR Radiused Spacer Block
Wider lead-in for smoother mag insertion.
View Product
Made in USAPP457FP-T Firing Pin
The CZ 457 part we're known for.
View Product
Made in USAPP457LCI Cocking Indicator
Extended stainless indicator you can see and feel.
View ProductFeed It Right.
Pair your new mag well with billet magazines from L3i in 10 and 13 rounds, Position7 in 10 and 13 rounds, or the factory CZ 10-Round Polymer Magazine.
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 Pillars
Pete's Pillars 22″ Threaded Match Barrel.960 stainless, MTR chamber, 1/2-28 threads.View Barrel →
Pete's Pillars
Pete's Pillars 26″ .960 Match BarrelLonger stainless .960 contour, MTR chamber.View Barrel →
Lilja
Lilja 24″ 1.180″ Bull BarrelHand-lapped 3-groove, Lilja 3 match chamber.View Barrel →
L3i
L3i 24″ Drop-In Match Barrel1.180″ 416R with the Wasp Match Chamber.View Barrel →
CZ
CZ 457 Varmint MTR Barreled ActionStart fresh: MTR chamber, 20.5″ heavy barrel.View Action →
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: CZ 455 / 457 Replacement Aluminum Magazine Well #16
MPN: CZ19048
Compatible Rifles: CZ 457 (DIP lists CZ 455 and 457)
Replaces: Factory Polymer Magazine Well
Material: 6061 Aircraft Aluminum, CNC Machined
Finish: Mil-Spec Hard Coat Anodized, Black
Installation: General Shop Tools
Your Choice (sold separately): Stainless Block Pin and Mag Well Screws, Extended Magazine Release
Frequently Asked Questions
Fitment, mag well options and completing your feeding upgrade.
What does the DIP CZ19048 replace?
It replaces the CZ 457's factory polymer magazine well, the usual fix for a broken or deformed factory part.
Which rifles does it fit?
It's listed for the CZ 457, and DIP describes it as fitting the CZ 455 and 457.
Which is better, the DIP CZ19048 or the Pete's Pillars PP457MW?
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 proven replacement. Of course, we're partial to ours: the PP457MW is made in the USA by Pete's Pillars and pairs directly with our releases and spacer blocks.
How do the L3i and Position7 mag wells compare?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. The L3i Billet Mag Well and Position7 Magwell Kit are competition-focused options. Position7's kit uses 7075 aluminum with an ejector insert and is offered with an extended release. Check each maker's chassis compatibility before ordering.
Does it include screws or a pin?
No. DIP recommends its stainless block pin and mag well screws, which are sold separately.
What mag release should I pair with it?
Our PP457MRB Extended Bumpy Release or PP457MRS Smooth Release add reach for faster mag changes. You can also choose the DIP Extended Magazine Catch.
What else should I upgrade?
Add the PP457SR Radiused Spacer Block for smoother insertion, then complete the bolt with our PP457FP-T Firing Pin and PP457LCI. See everything in our CZ 457 Parts Collection.
Small Change. Big Impact. Pete's Pillars.
DIP CZ 455 / 457 REPLACEMENT ALUMINUM MAGAZINE WELL
Replace the Plastic. Feed with Confidence.
The DIP (DiProducts) CZ19048 replaces the CZ 457's factory polymer magazine well with a CNC-machined 6061 aircraft aluminum part, finished in mil-spec hard coat black anodizing. It's the fix for a broken or deformed factory mag well, and a durable upgrade for any CZ 457 that sees a lot of magazine changes.
The factory CZ magazine well is polymer, and with heavy use, a hard drop or a tight chassis it can crack, deform and start causing feeding and seating problems. An aluminum mag well gives the magazine a rigid, consistent home every time it locks in. Use it for: replacing a damaged factory mag well, NRL22 and PRS Rimfire rifles, and high-round-count trainers.
Our Take: The Pete's Pillars PP457MW.
Our Take
Pete's Pillars PP457MW Aluminum Magazine Well
With more than six years building and supporting CZ rimfire rifles, the magazine well is a part we know inside and out. Our PP457MW replaces the factory polymer mag well with machined aluminum, made in the USA by Pete's Pillars, and pairs with our extended mag releases and spacer blocks for a complete feeding upgrade.
See the PP457MW →More Billet Mag Well Options.
Building a competition rifle? These billet mag wells are favorites on the match line.
Pete's Pillars PP457MWAluminum mag well, made in USA
L3i CZ 457 Billet Mag WellBillet aluminum for the CZ 457
Position7 Magwell Kit7075 aluminum with ejector insert
Complete the Feeding Upgrade
A better mag well works best with a better release and spacer. These Made-in-USA Pete's Pillars parts finish the job.
Made in USAPP457MRB Mag Release
Extended, serrated release for gloved mag changes.
View ProductMade in USAPP457SR Radiused Spacer Block
Wider lead-in for smoother mag insertion.
View ProductMade in USAPP457FP-T Firing Pin
The CZ 457 part we're known for.
View ProductMade in USAPP457LCI Cocking Indicator
Extended stainless indicator you can see and feel.
View ProductFeed It Right.
Pair your new mag well with billet magazines from L3i in 10 and 13 rounds, Position7 in 10 and 13 rounds, or the factory CZ 10-Round Polymer Magazine.
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 Pillars
Pete's Pillars 22″ Threaded Match Barrel.960 stainless, MTR chamber, 1/2-28 threads.View Barrel →
Pete's Pillars
Pete's Pillars 26″ .960 Match BarrelLonger stainless .960 contour, MTR chamber.View Barrel →
Lilja
Lilja 24″ 1.180″ Bull BarrelHand-lapped 3-groove, Lilja 3 match chamber.View Barrel →
L3i
L3i 24″ Drop-In Match Barrel1.180″ 416R with the Wasp Match Chamber.View Barrel →
CZ
CZ 457 Varmint MTR Barreled ActionStart fresh: MTR chamber, 20.5″ heavy barrel.View Action →
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: CZ 455 / 457 Replacement Aluminum Magazine Well #16
MPN: CZ19048
Compatible Rifles: CZ 457 (DIP lists CZ 455 and 457)
Replaces: Factory Polymer Magazine Well
Material: 6061 Aircraft Aluminum, CNC Machined
Finish: Mil-Spec Hard Coat Anodized, Black
Installation: General Shop Tools
Your Choice (sold separately): Stainless Block Pin and Mag Well Screws, Extended Magazine Release
Frequently Asked Questions
Fitment, mag well options and completing your feeding upgrade.
What does the DIP CZ19048 replace?
It replaces the CZ 457's factory polymer magazine well, the usual fix for a broken or deformed factory part.
Which rifles does it fit?
It's listed for the CZ 457, and DIP describes it as fitting the CZ 455 and 457.
Which is better, the DIP CZ19048 or the Pete's Pillars PP457MW?
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 proven replacement. Of course, we're partial to ours: the PP457MW is made in the USA by Pete's Pillars and pairs directly with our releases and spacer blocks.
How do the L3i and Position7 mag wells compare?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. The L3i Billet Mag Well and Position7 Magwell Kit are competition-focused options. Position7's kit uses 7075 aluminum with an ejector insert and is offered with an extended release. Check each maker's chassis compatibility before ordering.
Does it include screws or a pin?
No. DIP recommends its stainless block pin and mag well screws, which are sold separately.
What mag release should I pair with it?
Our PP457MRB Extended Bumpy Release or PP457MRS Smooth Release add reach for faster mag changes. You can also choose the DIP Extended Magazine Catch.
What else should I upgrade?
Add the PP457SR Radiused Spacer Block for smoother insertion, then complete the bolt with our PP457FP-T Firing Pin and PP457LCI. See everything in our CZ 457 Parts Collection.
Small Change. Big Impact. Pete's Pillars.
| Brand | DIP |
| Gun Platform | CZ 457 |
| Type | Magazine Well |