Magazines / Extensions / Brass Catchers
Explore our extensive selection of HK magazines and extensions designed for enhanced capacity and performance across a range of HK models including the VP9, USP, MP5, and more. From rugged steel magazines to advanced polymer extensions, our inventory caters to both tactical and recreational needs, ensuring reliable feeding and durability. Enhance your HK firearm with precision-engineered magazine upgrades, available now for various calibers and applications.
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On Sale
HK21, FMP Drum and Drum Hanger - 100 Round
H&K Heckler & Koch
Now: $997.95Was: $1,288.95HK Heckler and Koch HK21 and FMP Drum Hanger with 100 Round Drum Complete your HK21 or FMP21 build with the incredibly rare original H&K drum hanger and 100-round drum. These components have long been discontinued and are essential for...HKP-21509Now: $997.95Was: $1,288.95 -
Out Of Stock
HK UMP Caliber Conversion to 9mm Kit - 16.5" Barrel - 30 Round Magazine
Michaels Machines
$889.95HK UMP 9mm Conversion Kit - US-Made UMP/USC conversion kit will convert existing USC-UMP conversions to 9mm. This is a simple drop-in conversion for those who have already done the USC-UMP conversion. The conversion parts are drop-in, with the total swap...HKP-02284$889.95 -
HK G36 C-Mag System - 100 Round Drum
Beta C-Mag
$839.95The Beta Company 100 Round Beta C-Mag Kit for HK G36 These drums are designed with clear back covers to enable you to see your round count. This magazine is the top-of-the-line package from The Beta Company. This works in any weapon...HKP-21205-M$839.95