FN Five-seveN MRD MK3 20-Round 5.7x28mm Factory Magazine Black - 20-100682

FN Five-seveN MK3 20 Round 5.7 x 28mm Magazine - Black - SKU: 20-100682 - UPC: 845737015459

Product Description

The FN Five-seveN MK3 20-Round 5.7x28mm Magazine (20-100682) is a factory original OEM replacement magazine purpose-built for the FN Five-seveN® MK3 MRD pistol series. Engineered to meet FN America's strict military and law enforcement manufacturing tolerances, this 20-round factory magazine ensures seamless feeding, reliable lockup, and flawless operation with bottleneck 5.7x28mm ammunition.

Constructed from lightweight, impact-resistant composite polymer with an all-black floorplate finish, the 20-100682 features internal feed geometry tailored specifically to the redesigned ergonomics of the MK3 frame. A high-tensile steel wire spring paired with a low-friction polymer follower provides smooth cartridge elevation, while side capacity witness windows allow quick visual verification of remaining round counts during range training and field staging.

Whether you need spare magazines for high-volume range work, tactical duty carry, or home defense staging, the genuine FN 20-100682 magazine guarantees factory-original reliability and proper last-round slide lockup.

*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Direct factory OEM fit for the FN Five-seveN® MK3 MRD pistol series. (Designed for the MK3 series grip profile and baseplate geometry).

1. Verify host Five-seveN MK3 pistol is completely clear, magazine removed, safety engaged, and chamber visually and physically confirmed empty.
2. Hand-load 5.7x28mm cartridges straight down into the magazine lips, ensuring each round seats fully against the rear spine wall.
3. Check side witness windows (5, 10, 15, and 20 round markers) to confirm total cartridge count.
4. Insert the loaded 20-100682 magazine firmly into the MK3 grip well until the magazine release engages with a distinct click.
5. Perform a brief downward tug test to verify solid lockup prior to cycling the slide for initial chambering.

Key Features

• Factory OEM Precision: Authentic FN America manufacture guarantees optimal spring tension, feed angle, and slide-stop activation.
• 20-Round Standard Capacity: Holds 20 rounds of high-velocity 5.7x28mm ammunition for defense and high-volume shooting.
• Impact-Resistant Polymer Body: Lightweight composite construction withstands drop impacts and harsh thermal cycles.
• MK3 MRD Specific Baseplate: Tailored floorplate contours match the frame design of the FN Five-seveN MK3 series.
• Visual Capacity Witness Windows: Side witness ports enable instant visual verification of loaded round counts.
• Low-Friction Internal Follower: Smooth-tracking follower prevents binding and ensures continuous cartridge elevation.

Product Specifications

• Brand: FN America
• MPN: 20-100682 / 20100682
• SKU: 20-100682
• UPC: 845737015459
• Platform Compatibility: FN Five-seveN® MK3 MRD Series
• Caliber: 5.7 x 28mm
• Capacity: 20 Rounds
• Body Material: High-Strength Composite Polymer
• Finish/Color: Matte Black