L3i CZ 457 13-Round Billet Aluminum Magazine
The L3i CZ 457 13-Round Billet Aluminum Magazine is a premium American-made magazine engineered for precision rimfire competition. CNC-machined from solid 6061-T6 aluminum with a Mil-Spec Type III hardcoat anodized finish, it combines durable construction, precision cartridge presentation, and the additional capacity demanded by competitive shooters.
Recognized by L3i as the Official Rimfire Magazine of the Precision Rifle Series (PRS), this magazine was developed for the demands of PRS Rimfire, NRL22, and other precision rimfire disciplines. Its 13-round capacity allows competitors to complete many common 10- to 12-round stages without interrupting their shooting position for a magazine change.
Unlike conventional factory polymer magazines, the L3i features a rigid billet aluminum body, a precision stainless steel follower, and carefully engineered internal geometry designed to reduce unwanted contact with exposed lead bullets during feeding. The slim exterior profile is intended to provide clearance in popular precision rifle chassis systems, including compatible MDT, KRG, and MPA configurations.
Practical details make the difference. Witness windows at 10 and 13 rounds simplify magazine preparation, while the removable baseplate allows disassembly for cleaning accumulated bullet wax, lubricant, and powder residue. The result is a thoughtfully engineered magazine designed for shooters who take their rimfire equipment seriously.
Specifications and Compatibility
- Manufacturer: L3i Rifles
- Part Number: L3I-MAG-CZ457-13R
- Compatibility: CZ 457, CZ 455, CZ 452
- Caliber: .22 Long Rifle
- Capacity: 13 Rounds
- Body: CNC-Machined 6061-T6 Billet Aluminum
- Finish: Matte Black, Type III Hardcoat Anodized
- Follower: Precision Stainless Steel
- Witness Windows: 10 and 13 Rounds
- Maintenance: Removable Baseplate, Serviceable Construction
- Country of Manufacture: USA
Designed for compatible factory CZ rifle configurations and aftermarket chassis systems. Magazine fitment can vary with nonstandard magazine catches and aftermarket magwells. This model is intended for .22 LR only and is not compatible with .22 WMR or .17 HMR.
Complementary CZ 457 Competition Upgrades
For shooters comparing premium billet magazines, the Position7 CZ 457 13-Round Aluminum Magazine is another compelling option. Position7 uses 7075 aluminum construction, individual cartridge witness holes, and a distinctive reduced-curvature body designed with competition chassis clearance in mind. Both offer alternatives to factory polymer magazines, with different approaches to construction and magazine geometry.
Magazine handling is another consideration for competitors. Our Pete's Pillars PP457MRS Extended Magazine Release offers a longer, more accessible magazine control with a smooth contact surface and durable black nitride finish. It's a natural companion for shooters refining magazine access on compatible CZ rimfire rifles. Check fitment when using aftermarket magwell assemblies.
For improved bolt handling, consider our Pete's Pillars PPFGL XL Finger Groove Bolt Knob. CNC-machined in the USA from billet aluminum, its enlarged profile and comfortable finger grooves provide a substantial gripping surface for CZ 455 and CZ 457 shooters. The contoured design is particularly appealing for precision rimfire competitors who frequently manipulate the bolt during positional shooting.
CZ 457 owners can also upgrade the factory plastic cocking indicator with our PP457LCI Extended Stainless Steel Cocking Indicator. Its extended profile provides improved visual and tactile identification of striker cocking status, complementing other precision-machined upgrades throughout the rifle.
Pete's Pillars manufactures and supplies an extensive selection of precision rimfire components. Explore our CZ 457 Parts and Upgrades for additional magazines, magazine controls, bolt components, scope rails, and competition accessories.
L3i CZ 457 Magazine – Frequently Asked Questions
Will the L3i magazine fit CZ 455 and CZ 452 rifles?
Yes. L3i specifies compatibility with CZ 457, CZ 455, and CZ 452 rifles chambered in .22 LR. Aftermarket magazine catches and magwells may affect individual fitment.
What makes the L3i magazine different from a factory CZ magazine?
The L3i magazine features a CNC-machined 6061-T6 aluminum body, 13-round capacity, stainless steel follower, witness windows, and removable baseplate. Its construction and competition-focused geometry distinguish it from conventional factory polymer magazines.
What is the difference between L3i and Position7 magazines?
Both offer 13-round billet aluminum magazines for compatible CZ rimfire rifles. L3i uses 6061-T6 aluminum with 10- and 13-round witness windows, while Position7 uses 7075 aluminum, individual cartridge witness holes, and reduced-curvature exterior geometry.
Explore the Position7 CZ 457 Magazine to compare the designs.
Will this magazine work with MDT, KRG, or MPA chassis systems?
L3i identifies compatibility with popular MDT, KRG, and MPA precision rifle configurations. Nonstandard magazine wells and release assemblies can affect fitment, so confirm the specific combination before ordering.
Will an L3i magazine work with a Position7 aluminum magwell?
Compatibility between this L3i magazine and the Position7 aftermarket aluminum magwell has not been confirmed. Verify the specific magazine and magwell combination before purchasing.
Can the L3i magazine be disassembled for cleaning?
Yes. The removable baseplate allows the magazine to be disassembled for cleaning accumulated bullet wax, lubricant, and powder residue. This serviceable design is especially useful for regularly used precision rimfire magazines.
Can this magazine be used with .22 WMR or .17 HMR?
No. This L3i 13-round magazine is designed specifically for .22 Long Rifle cartridges and is not compatible with .22 WMR or .17 HMR ammunition.
