USP Magazines / Extensions

HKP/H&K 17 Round HK Mark 23/USP .45 ACP Complete Magazine Each mag comes fully assembled and ready for use. HK Parts takes an existing German HK 12 round mag coupled with the +5 mag extension and assembles them into a complete 17 round mag. What you...

HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine - Black Our 17 round magazine starts life as a factory HK 12 round magazine then gets a capacity bump with our +5 mag extension. Compatible With: HK USP .45 HK Mark 23

HKP 25 Round HK USP 9mm Magazine HK Parts +10 magazine extension coupled with a 15 round magazine. Each unit is then fully assembled as a 25 round magazine. Ideal for competitive shooters, concealed carry or for everyday use while at the range...

HKP 15 Round HK 45C & USPC .45 ACP Magazine  HK Parts +7 magazine extension boosts the HK45C 8-round mag to a full 15 rounds. Fully assembled and factory fresh, it's perfect for competition, concealed carry, or range use. Compatible With: HK...