UMP / USC Magazines / Brass Catchers

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.

New HK UMP .40 30 Round Magazine Housing New HK German UMP .40 30 round factory magazine body. A great spare part in the event that your mag body is damaged or cracked.

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

H&K UMP (.45 ACP) 25 Round Magazine - German LEO Markings - LIKE NEW Like-new PD trade in HK German UMP .45 cal 25 Round Factory Magazines. These magazines will fit all UMP factory firearms as well as the USC's that have been converted to accept UMP...

HK UMP 30 Round Magzine Follower .40 S&W

HK German Factory 5 Round USC .45 Magazine This is the only magazine that HK offers for the HK USC unless you want to upgrade to the USC-UMP style of conversions. Compatible With: All HK USC carbines

Rare Surplus 30 Round Magazine - LEO Marked - Windowless - UMP .40 S/W Rare UMP .40 windowless magazine with LEO markings. Highly unique magazines as these were "early production" magazines that were used before they switched over to the windowed UMP...

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

HKP HK Parts HK UMP (.40 S&W) 30 Round Magazine Housing ONLY - BLEMISHED Priced for ONE Magazine Housing ONLY - Condition Varies by Unit - Each unit Sold INDIVIDUALLY ONLY 2 UNITS AVAILABLE - AS PICTURED MAGAZINE BODY ONLY COSMETICALLY BLEMISHED...