H&K USP Magazine

This magazine is specifically designed for the gas blowback H&K USP series. It is not compatible with CO2-powered variants or non-blowback models, so please verify your specific pistol type before purchasing.

This magazine is engineered for use with Green Gas. Using higher-pressure gases like Red Gas or HPA can damage the internal seals and decrease the lifespan of the magazine.

Yes, the metal construction provides a realistic weight that mimics a fully loaded firearm. While it adds a bit more heft than polymer alternatives, it offers superior durability and a more authentic feel during drills.

To prevent leaks, always keep a small amount of gas in the magazine when storing it to keep the seals under pressure. Additionally, applying a light coat of silicone oil to the fill and output valves periodically will keep the O-rings supple and effective.

The high-tension spring is designed to ensure consistent feeding even during rapid-fire sequences. It handles standard airsoft BB weights effectively, though we recommend using high-quality, seamless BBs to prevent potential jams.