Mec-Gar Glock 17 9mm 20-Round Extended Magazine with Flat Dark Earth Baseplate - MGG172005A - UPC: 765595900080
Product Description
The Mec-Gar MGG172005A is an extended 20-round magazine designed for full-size Glock 17 9mm Luger handguns and compatible 9mm pistol-caliber carbines. Built with a heat-treated carbon steel body, this magazine provides exceptional structural rigidity, preventing feed lip spreading under long-term capacity tension. The body is finished in a anti-friction black coating that resists corrosion and ensures smooth insertion and drop-free ejection from polymer lower frames.
This upgraded magazine configuration features an extended Flat Dark Earth (FDE) polymer baseplate that increases total capacity by +3 rounds over standard 17-round Glock magazines while providing extra purchase for positive handling during rapid reloads. Internally, it features a high-tensile music wire spring paired with an anti-tilt follower to maintain continuous, uniform upward force on the cartridge stack for reliable feeding across duty, defense, and competition loads.
Manufactured by Mec-Gar—the premier OEM magazine producer for major firearm manufacturers worldwide—this magazine delivers strict dimensional tolerances and reliable performance. Numbered indicator witness holes stamped along the rear face of the steel housing offer rapid visual capacity verification in the field.
*Armorer Bench Notes & Real-World Staging Guidance:
Platform Compatibility Matrix:
• Primary: Glock 17, Glock 34, Glock 17L, and Glock 45 handguns (Gens 1–5).
• Secondary: Compact Glock 19 and subcompact Glock 26 models (will extend below grip frame), plus 9mm AR-15/PCC setups utilizing Glock-pattern magazine wells.
Maintenance & Staging Steps:
1. Depress the locking floorplate insert button through the bottom of the FDE baseplate using a punch to slide the extended basepad forward for cleaning.
2. Inspect internal body walls periodically and remove debris using a nylon magazine brush; do not leave heavy oil residue inside the tube.
3. Ensure the high-tensile spring is seated correctly under the anti-tilt follower prior to locking the FDE floorplate back onto the retainer rails.
Key Features
- Heat-treated carbon steel housing prevents feed lip flexing under pressure.
- Special anti-friction coating provides corrosion resistance and smooth drop-free operation.
- High-impact Flat Dark Earth (FDE) extended polymer baseplate adds +3 round capacity.
- High-tensile music wire spring maintains uniform tension for uninterrupted feeding.
- Precision-molded anti-tilt follower ensures consistent cartridge stack presentation.
- Rear witness holes stamped into the steel body allow quick visual round counting.
- Compatible across all generations of full-size 9mm Glock pistols and Glock-pattern PCCs.
Product Specifications
- Brand: Mec-Gar
- MPN / Model: MGG172005A
- UPC: 765595900080
- Caliber: 9mm Luger / 9x19mm
- Capacity: 20 Rounds
- Body Material: Heat-Treated Carbon Steel
- Body Finish: Black Anti-Friction Coating
- Baseplate Finish: Flat Dark Earth (FDE) Polymer
- Platform Fitment: Glock 17 / 34 / 19 / 26 / 45 & 9mm Glock-Pattern PCCs
