Heckler & Koch MP5 .22 LR 25-Round Factory Magazine Black - 51000212

HK MP5 25rd 22 LR Fit HK MP5 Black Polymer 51000212 UPC 642230262652

Product Description

The Heckler & Koch MP5 .22 LR 25-Round Magazine (51000212) is an authentic OEM factory replacement magazine designed specifically for HK MP5 .22 LR rimfire rifles and pistols manufactured by Umarex under license from HK. Built to match the iconic silhouette and exact dimensions of full-scale 9mm MP5 magazines, this 25-round magazine delivers seamless feeding performance for high-volume range sessions and target shooting.

Constructed from a high-density, impact-resistant polymer composite, the magazine body is engineered to withstand drop impacts, range bag transport, and continuous cycling. It features an integrated dual-sided load-assist thumb tab that relieves spring tension while loading, making manual thumb loading effortless across all 25 rounds.

Equipped with a high-tensile steel spring and a precision-molded internal follower, the 51000212 magazine ensures consistent cartridge alignment and smooth feeding of both standard velocity and high-velocity .22 LR ammunition. Authentic HK factory construction guarantees optimal lockup and flawless drop-free ejection in all official HK MP5 .22 LR sub-caliber platforms.

*Armorer Bench Notes & Real-World Staging Guidance:*

Fitment Matrix: Direct fitment for HK MP5 .22 LR Rifle, HK MP5 .22 LR Pistol, and HK MP5 SD .22 LR rimfire models (manufactured by Umarex/HK). (Note: Not compatible with 9mm MP5 / SP5 receivers, GSG-5/522 models, or Walther/Colt .22 LR firearms).

1. Ensure the host rimfire firearm is completely clear, magazine removed, and chamber visually and physically verified empty.
2. Depress the side load-assist thumb tab downward to relieve internal spring tension when inserting .22 LR cartridges.
3. Load up to 25 rounds of quality .22 Long Rifle ammunition, ensuring cartridges seat flush against the rear spine of the polymer housing.
4. Insert the magazine into the MP5 .22 LR lower receiver until the paddle magazine release or push-button latch locks with a firm click. Confirm smooth drop-free release when engaging the magazine catch.

Key Features

• Official HK Factory OEM Product: Built to exact original factory specifications for guaranteed fitment and optimal feed reliability.
• Integrated Dual Load-Assist Tabs: Thumb-pull tabs allow fast, effortless loading without thumb fatigue.
• Impact-Resistant Polymer Body: Tough composite shell resists cracking, weather elements, and impact forces.
• 25-Round Capacity: Maximizes range time and rimfire tactical training between reloads.
• Smooth High-Velocity Feeding: Precision-molded follower and steel spring accommodate standard and high-velocity .22 LR loads.

Product Specifications

• Brand: Heckler & Koch (HK)
• Model/Series: MP5 .22 LR Factory Magazine
• MPN / SKU: 51000212 / 51000212
• UPC: 642230262652
• Caliber: .22 Long Rifle (.22 LR)
• Capacity: 25 Rounds
• Body Material: Impact-Resistant Polymer Composite
• Follower: High-Traction Polymer Follower w/ Load Assist Tabs
• Finish/Color: Matte Black
• Country of Origin: Germany