L3I CZ 457 BILLET ALUMINUM .22 LR MAGWELL
A Billet Aluminum Home for Your CZ 457 Magazine.
The L3i CZ 457 Billet Aluminum Magwell (L3I-BMW-CZ457-MGW) is a billet aluminum magazine well built for the .22 LR CZ 457. It gives your magazine a rigid, precision-machined seat and pairs naturally with the rest of a CZ 457 competition build.
L3i is known in the CZ rimfire world for precision billet magazines, and this magwell carries that same approach to the part that holds them. It's a straightforward way to move past the factory plastic and give your magazine a stiffer, more consistent home. Use it for: NRL22, PRS Rimfire, benchrest, small game and any .22 LR CZ 457 getting a magazine-area refresh.
Built for Precision.
The L3i magwell is machined from billet aluminum for a rigid, stable magazine interface on your CZ 457. Pair it with a quality billet magazine and the magazine area of the rifle becomes one of the most solid parts of the build. Magazine fitment can vary with aftermarket magazine catches and other magwell hardware, so confirm your combination before ordering.
Magwell Mounting Options.
The L3i is a nice choice, and it isn't the only way to upgrade the magazine area. Our own spacer blocks are CNC-machined here in the USA and are one of the most overlooked upgrades on the CZ 457. See below for how they compare.
Our Take
PP457SB Aluminum Mag Well Spacer Block
Running .22 LR? The factory plastic spacer that positions your magazine is one of the most overlooked parts on the CZ 457. Our PP457SB replaces it with CNC-machined 6061 billet aluminum and a factory-style squared opening, made in the USA with a stainless retaining pin included. Want faster, smoother mag changes? The radiused PP457SR adds a wider lead-in that's easier with gloves on.
See the PP457SB →Pair It With.
PP457MRB Mag ReleaseExtended, serrated for gloved mag changes
PP457MRS Mag ReleaseExtended, smooth flat contact surface
PP457LCI Cocking IndicatorExtended stainless, replaces factory plastic
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 →
The Next Level: A Match Barrel.
Once the magazine area is sorted, the biggest step-up for a CZ 457 is a match barrel. Browse all rifle barrels, or start with the Lilja 1.180″ CZ 457 or the L3i Drop-In Match Barrel.
Did You Know?
Pete's Pillars Sells More Than Pillars.
From centerfire chassis to optics and reloading, outfit every rifle in the safe in one place.
Optics & Mounts
Bipods & Magazines
Product Specifications
Manufacturer: L3i
MPN: L3I-BMW-CZ457-MGW
Platform: CZ 457 (.22 LR)
Material: Billet aluminum
Frequently Asked Questions
Fitment, magazines, comparisons and completing your CZ 457 magazine area.
Will it fit my rifle?
The L3i magwell is made for the CZ 457. As with any aftermarket magazine-area part, factory tolerance stack-up and aftermarket magazine catches can affect individual fitment, so confirm your setup before ordering. Questions? Contact us.
Which calibers is it for?
It's listed for the .22 LR CZ 457.
Which magazines work with it?
Magazine and magwell combinations can vary, particularly with aftermarket magazines and catches. Check your specific combination before purchasing. For a premium magazine, see the Position7 13-Round Magazine or browse all magazines.
Which is better, the L3i magwell or the PP457SB spacer block?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. L3i is a respected name in CZ rimfire. Of course, we're partial to ours: the PP457SB is CNC-machined 6061 billet aluminum, made in the USA by Pete's Pillars, and the radiused PP457SR adds a wider lead-in.
How can I make mag changes faster?
What else should I upgrade on my CZ 457?
Start with the bolt: the PP457FP-T Firing Pin, PP457LCI Cocking Indicator, PP457ES Extractor Set and a PP4KG Bolt Knob. Then see all CZ 457 parts.
Does Pete's Pillars sell more than CZ parts?
Yes. We carry centerfire chassis from MDT, XLR and Grey Birch, Lilja and L3i barrels, optics and mounts, reloading gear like the Area 419 ZERO press, and Ruger 10/22 and Mark IV upgrades from Volquartsen and KIDD.
Small Change. Big Impact. Pete's Pillars.
L3I CZ 457 BILLET ALUMINUM .22 LR MAGWELL
A Billet Aluminum Home for Your CZ 457 Magazine.
The L3i CZ 457 Billet Aluminum Magwell (L3I-BMW-CZ457-MGW) is a billet aluminum magazine well built for the .22 LR CZ 457. It gives your magazine a rigid, precision-machined seat and pairs naturally with the rest of a CZ 457 competition build.
L3i is known in the CZ rimfire world for precision billet magazines, and this magwell carries that same approach to the part that holds them. It's a straightforward way to move past the factory plastic and give your magazine a stiffer, more consistent home. Use it for: NRL22, PRS Rimfire, benchrest, small game and any .22 LR CZ 457 getting a magazine-area refresh.
Built for Precision.
The L3i magwell is machined from billet aluminum for a rigid, stable magazine interface on your CZ 457. Pair it with a quality billet magazine and the magazine area of the rifle becomes one of the most solid parts of the build. Magazine fitment can vary with aftermarket magazine catches and other magwell hardware, so confirm your combination before ordering.
Magwell Mounting Options.
The L3i is a nice choice, and it isn't the only way to upgrade the magazine area. Our own spacer blocks are CNC-machined here in the USA and are one of the most overlooked upgrades on the CZ 457. See below for how they compare.
Our Take
PP457SB Aluminum Mag Well Spacer Block
Running .22 LR? The factory plastic spacer that positions your magazine is one of the most overlooked parts on the CZ 457. Our PP457SB replaces it with CNC-machined 6061 billet aluminum and a factory-style squared opening, made in the USA with a stainless retaining pin included. Want faster, smoother mag changes? The radiused PP457SR adds a wider lead-in that's easier with gloves on.
See the PP457SB →Pair It With.
PP457MRB Mag ReleaseExtended, serrated for gloved mag changes
PP457MRS Mag ReleaseExtended, smooth flat contact surface
PP457LCI Cocking IndicatorExtended stainless, replaces factory plastic
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 →
The Next Level: A Match Barrel.
Once the magazine area is sorted, the biggest step-up for a CZ 457 is a match barrel. Browse all rifle barrels, or start with the Lilja 1.180″ CZ 457 or the L3i Drop-In Match Barrel.
Did You Know?
Pete's Pillars Sells More Than Pillars.
From centerfire chassis to optics and reloading, outfit every rifle in the safe in one place.
Optics & Mounts
Bipods & Magazines
Product Specifications
Manufacturer: L3i
MPN: L3I-BMW-CZ457-MGW
Platform: CZ 457 (.22 LR)
Material: Billet aluminum
Frequently Asked Questions
Fitment, magazines, comparisons and completing your CZ 457 magazine area.
Will it fit my rifle?
The L3i magwell is made for the CZ 457. As with any aftermarket magazine-area part, factory tolerance stack-up and aftermarket magazine catches can affect individual fitment, so confirm your setup before ordering. Questions? Contact us.
Which calibers is it for?
It's listed for the .22 LR CZ 457.
Which magazines work with it?
Magazine and magwell combinations can vary, particularly with aftermarket magazines and catches. Check your specific combination before purchasing. For a premium magazine, see the Position7 13-Round Magazine or browse all magazines.
Which is better, the L3i magwell or the PP457SB spacer block?
We only carry parts we trust, can stand behind and know are built with quality, so you're in good hands either way. L3i is a respected name in CZ rimfire. Of course, we're partial to ours: the PP457SB is CNC-machined 6061 billet aluminum, made in the USA by Pete's Pillars, and the radiused PP457SR adds a wider lead-in.
How can I make mag changes faster?
What else should I upgrade on my CZ 457?
Start with the bolt: the PP457FP-T Firing Pin, PP457LCI Cocking Indicator, PP457ES Extractor Set and a PP4KG Bolt Knob. Then see all CZ 457 parts.
Does Pete's Pillars sell more than CZ parts?
Yes. We carry centerfire chassis from MDT, XLR and Grey Birch, Lilja and L3i barrels, optics and mounts, reloading gear like the Area 419 ZERO press, and Ruger 10/22 and Mark IV upgrades from Volquartsen and KIDD.
Small Change. Big Impact. Pete's Pillars.
| Brand | L3i |
| Gun Platform | CZ 457 |
| Type | Magazine Well |