ProMag Glock 43X/48 28 Round 9MM Magazine - For Glock 43X/48, Steel Construction, Blued Finish, Black - SKU: GLK-A23 - UPC: 708279016394
Product Description
The ProMag GLK-A23 is an extended 28-round high-capacity 9mm magazine engineered specifically for the Glock 43X, Glock 43X MOS, and Glock 48 slimline handgun platforms. Designed to maximize overall round payload for high-volume range training, target practice, and tactical shooting drills, this extended magazine provides nearly triple the standard capacity of factory single/staggered-stack 10-round magazines.
Constructed from heat-treated, carbon steel with a protective blued finish, the magazine body resists severe impact wear, binding, and corrosion. The interior features a heat-treated chrome silicon wire spring paired with an injection-molded, high-visibility polymer follower to guarantee smooth, continuous cartridge elevation and positive slide lock-back after the final round is discharged.
Designed with an upper polymer indexing collar sleeve, the GLK-A23 fits flush against the base of the slimline grip frame, offering a seamless ergonomic extension and secondary hand support for improved muzzle control during rapid-fire sequences.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Glock 43X, Glock 43X MOS, and Glock 48 slimline handguns (9mm Luger).
- Verify host pistol is completely clear, magazine removed, and chamber physically confirmed empty before servicing.
- Load 9x19mm cartridges individually, ensuring each round seats fully against the rear interior spine of the steel body.
- Inspect feed lips for uniform contour and clean surface geometry before live-fire staging.
- Insert the loaded magazine firmly into the G43X/48 magwell until the magazine catch locks in place with a clear tactile click.
- To clean internal components, depress the floorplate locking pin, slide the polymer baseplate forward under control, and extract the spring and follower for dry swab cleaning.
Key Features
- 28-Round Extended Capacity: Maximizes range time and reduces reload cycles for Glock 43X and 48 slimline handguns.
- Heat-Treated Steel Construction: Premium carbon steel body with a protective blued finish ensures long-term structural durability.
- Chrome Silicon Spring Wire: High-tensile heat-treated spring maintains consistent feeding tension and resists spring fatigue over long storage cycles.
- Injection-Molded Follower: Smooth polymer follower eliminates nose-diving and binds inside the magazine tube.
- Integrated Grip Sleeve Collar: Polymer sleeve fills the grip void to provide enhanced hand support and weapon control.
Product Specifications
- Brand: ProMag
- MPN: GLK-A23
- UPC: 708279016394
- Caliber: 9mm Luger (9x19mm)
- Capacity: 28 Rounds
- Body Material: Heat-Treated Steel
- Finish: Blued
- Spring Material: Heat-Treated Chrome Silicon Steel
- Follower: Injection-Molded Polymer
- Platform Compatibility: Glock 43X / Glock 43X MOS / Glock 48
