ProMag 20 Round Extended Magazine for the Glock 43X / 48 - 20 Round, Blue Steel Construction - SKU: GLK-A22 - UPC: 708279016387
Product Description
The ProMag GLK-A22 is an extended 20-round high-capacity 9mm magazine engineered specifically for the Glock 43X, Glock 43X MOS, and Glock 48 slimline handgun platforms. Designed to deliver double the ammunition payload of standard factory single/staggered-stack 10-round magazines, this extended magazine offers a balanced balance between increased capacity and manageable overall grip length for tactical training, target shooting, and range staging.
Constructed from heat-treated carbon steel with a protective blued finish, the magazine body provides superior structural rigidity and wear resistance compared to standard polymer sleeves. 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 reliable slide lock-back after the final round is discharged.
Featuring an integrated upper polymer indexing sleeve collar, the GLK-A22 fills the lower grip contour void to provide a seamless ergonomic transition and secondary grip support for improved recoil control during rapid firing cycles.
*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
- 20-Round Extended Capacity: Doubles standard capacity for Glock 43X and 48 slimline handguns while maintaining balanced weapon control.
- Heat-Treated Steel Construction: Durable carbon steel body with a protective blued finish ensures long-term structural integrity.
- Chrome Silicon Spring Wire: High-tensile heat-treated spring maintains consistent feeding pressure and resists spring fatigue.
- 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-A22
- UPC: 708279016387
- Caliber: 9mm Luger (9x19mm)
- Capacity: 20 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
