HK USP9 9mm 31-Round Magazine 9mm Luger - 50248614 - 642230266773
Product Description
Extended magazine capacity transforms the Heckler & Koch USP9 platform into a formidable tool for dynamic range drills, PCC (Pistol Caliber Carbine) primary staging, and high-volume training sequences. Standard 15-round flush magazines require frequent reload pauses, while unproven aftermarket extensions often cause spring fatigue, misfeeds, or failure to lock the slide back on empty. The HK USP9 31-Round Extended 9mm Magazine resolves these operational hurdles by pairing precision-stamped steel construction with continuous spring tension engineered specifically for smooth 31-round feed geometry.
Constructed with a heavy-gauge steel body treated in a durable black oxide coating, this magazine resists impact damage, corrosion, and feed lip deformation under aggressive reloading cycles. Numbered witness holes along the rear spine allow instantaneous visual round counting. Internally, a high-tensile steel spring powers a smooth, anti-tilt polymer follower, ensuring consistent cartridge alignment and reliable slide catch activation on the final round.
Engineered to exact HK USP frame dimensions, the 50248614 extended magazine locks securely into full-size HK USP 9mm magwells with positive latch engagement and drop-free ejection. Upgrade your USP9 setup with massive firepower and uncompromised feeding reliability built for hard-use shooting environments.
*Armorer Bench Notes & Real-World Staging Guidance:
Fitment Matrix: Direct compatibility with full-size Heckler & Koch USP9 (9x19mm) handguns and compatible 9mm PCC conversion setups using standard USP9 magazine wells. Not compatible with USP Compact 9mm, HK P30, or VP9 frames without specialized adapters.
Installation Sequence:
- Clear the firearm, remove any current magazine, and physically check the chamber to confirm an empty weapon.
- Load up to 31 rounds of 9x19mm Parabellum ammunition, ensuring cartridges seat flush against the rear magazine spine.
- Align the extended magazine with the USP9 grip frame and insert firmly until the paddle release locks into place with a clear, mechanical click.
- Perform a firm downward pull test to verify positive latch engagement before racking the slide.
- Rack the slide to chamber a round and ensure smooth feeding geometry across the feed ramp.
Key Features
- 31-Round Extended Capacity: More than doubles standard USP9 payload for high-volume competition and continuous tactical drills.
- Heavy-Gauge Stamped Steel Body: Sturdy steel construction provides extreme durability and long-term feed lip alignment.
- Corrosion-Resistant Black Finish: Protective coating resists holster friction, chemical solvents, and harsh environmental exposure.
- Anti-Tilt Polymer Follower: High-visibility follower powered by a heavy-duty steel spring maintains uniform cartridge presentation.
- Numbered Visual Witness Holes: Rear spine witness ports allow quick monitoring of remaining ammunition count.
Product Specifications
- Brand: Heckler & Koch (HK)
- Model: USP9 31-Round Extended Magazine
- MPN: 50248614
- UPC: 642230266773
- Caliber: 9x19mm Parabellum / 9mm Luger
- Capacity: 31 Rounds
- Platform Compatibility: HK USP9 (Full-Size)
- Material: Stamped Steel Body
- Finish: Black Oxide / Nitride
- Follower: Anti-Tilt Polymer
