HK USP 18-Round 9mm Magazine - Black Steel OEM Factory Mag

The HK 50259081 factory magazine delivers reliable 18-round capacity for USP series pistols in 9mm Luger. This OEM magazine maintains the same construction standards and materials as the original equipment, ensuring consistent feeding and ejection cycles that match factory specifications.

What Makes This Different

Unlike aftermarket alternatives, this factory HK magazine uses the same heat-treated steel construction and precise tolerances found in original equipment. The anti-tilt follower design prevents feeding malfunctions that can occur with generic magazines. HK's proprietary spring tension maintains consistent performance through thousands of loading cycles without weakening.

Key Features

• 18-round capacity in 9mm Luger for extended shooting sessions
• Heat-treated steel body with corrosion-resistant black finish
• Anti-tilt follower prevents double-feeds and misfeeds
• Compatible with USP, USP Tactical, USP Elite, and USP Expert models
• Witness holes for quick round count verification
• Removable floorplate for cleaning and maintenance
• OEM construction matches factory reliability standards

This magazine performs consistently across temperature ranges from -20°F to 140°F, making it suitable for duty carry, competitive shooting, and training applications. The steel construction withstands repeated drops on concrete without cracking or denting. Law enforcement agencies rely on these magazines for their proven track record in high-stress situations where malfunction is not an option.

Technical Specs

• Capacity: 18 rounds of 9mm Luger
• Material: Heat-treated steel body with polymer follower
• Finish: Matte black corrosion-resistant coating
• Compatible Models: HK USP, USP Tactical, USP Elite, USP Expert
• Overall Length: Approximately 5.5 inches
• Weight: 4.2 ounces empty
• Country of Origin: Germany

Factory magazines eliminate the guesswork of aftermarket compatibility while maintaining resale value of the host firearm. Professional shooters and department armorers specify OEM magazines to avoid liability issues associated with non-factory components.