UMP / USC Magazines / Brass Catchers

HKP HK UMP Floorplate Compatible With: UMP .45 UMP .40 UMP 9mm These can become cracked or broken with use or drops onto hard surfaces. Made in the USA and counts as 1 US compliant part.

HK UMP .45 Magazine Locking Plate   Made in the USA

HKP HK UMP (.40 S&W) 30 Round Magazine - USED Each 30-round magazine will fit all HK UMP .40 caliber carbines, SMGs as well as the USC-UMP .40 caliber conversions. Each magazine features steel feed lips, enhanced polymer construction and all correct...

H&K USC (.45 ACP) 10 Round Factory Magazine Spring Compatible With: HK USC 10 Round magazines

HK Series Raddlock Key And Lanyard Raddlock kits convert your firearm to a non-detachable magazine configuration for states with removable magazine restrictions. This is a replacement key for firearms equipped with a Raddlock device. Compatible With the...

HK UMP .45 15 Round Magazine Spring Perfect for spares and to have on hand as these are consumable item that needs to be replaced from time to time. A must have item if you own a USC/UMP conversion or UMP.

H&K UMP (9mm) Magazine Spring - 30 Round Perfect for spares and to have on hand as these are a consumable part.

H&K USC (.45 ACP) Magazine Follower New HK German USC 10 Round magazine follower.

HK UMP 30 Round Magzine Follower .40 S&W

H&K UMP (.40 S&W) Magazine Locking Plate German HK.

H&K USC (.45 ACP) Magazine Locking Plate Insert

H&K USC (.45 ACP) Magazine Floor Plate