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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Out Of Stock
HK MP5 Magazine Floorplate - .40 S&W, 10mm
H&K Heckler & Koch
$14.95H&K Heckler and Koch New HK German Magazine Floor Plate HK MP5 40,10HKP-01269$14.95 -
HK CC9 Magazine Spring - 10 Round
H&K Heckler & Koch
$5.95Heckler and Koch 10-Round Magazine Spring for HK CC9 Genuine 10-round HK CC9 magazine spring, made from steel for reliable feeding and long service life. Compatible With: CC9HKP-22151$5.95 -
HK MG3 50 Round Assault Drum
H&K Heckler & Koch
$27.95H&K MG3 50 Round Assault Drum H&K manufactured 50-round drum for the MG3. Unissued, but may have light marks or dust from long-term storage. Clips onto MG3 feed trays. With minor modifications, these can be run on HK21, HK21E, and HK51B setups...HKP-22090$27.95 -
HK91, G3, HK91, HK33, HK53, HK93 Paddle Mag Release - Anti-Rattle - USED
H&K Heckler & Koch
$42.95H&K G3/91/93/53/33 Anti-Rattle Mag Release - USED This is a used German anti-rattle paddle mag release for installation on all H&K .223 and .308 rifles. Compatible With: HK G3/91 HK 51 HK 93/53/33 HK PSG-1 HK MSG-90 PTR91 Clones and other custom...HKP-22061$42.95 -
HK USP Full Size Magazine Floorplate - .40 S&W - 10 Round - Standard
H&K Heckler & Koch
$8.9510 Round HK USP .40 S&W Full Size Standard Magzine Floor Plate Compatible With: HK USP 40 Full Size S&W 10 Round MagazineHKP-01439$8.95 -
HK USC Magazine - 5 Round - .45 ACP
H&K Heckler & Koch
$57.95HK Heckler and Koch 5 Round .45 ACP Magazine for HK USC 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 carbinesHKP-20041$57.95 -
HK 20 Round HK91, G3 Rare LEO Laser Marked Steel Magazine - Parkerized
H&K Heckler & Koch
$59.9520 Round Steel Magazine HK L.E.O - HK 91, G3, PTR .308- LEO Laser Marked Perfect for the avid collector, HK .308 factory steel 20-round all-steel magazine. Each magazine starts as a handpicked unit and is expertly broken down and refinished, inside...HKP-19333$59.95 -
HK Mark 23 Lockout Device Set
H&K Heckler & Koch
$29.95HK Mark 23/SOCOM Lockout Device Set Includes: Lockout key Lockout deviceHKP-01547$29.95 -
Out Of StockOn Sale
HK USP .40 S&W +5 Magazine Extension - Red - BLEMISHED
HKP HK Parts
Now: $31.95Was: $49.95HK USP .40 S&W +5 Magazine Extension - Red - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. HK Parts magazine extension +5 adds 5 additional rounds...HKP-18645-RE-BNow: $31.95Was: $49.95 -
HK417, MR762 Rear Sight Drum
HKP HK Parts
$29.95HKP HK MR762 & HK 417 Rear Sight Drum Made in the USA.HKP-17776$29.95 -
On Sale
HK USP Compact Lockout Device
H&K Heckler & Koch
Now: $9.95Was: $18.95HK USPC Lockout Device Easily installs to lock out the magazine. Used to comply with certain state laws and as an added safety feature. This lockout device can be retrofitted to older-style USPC's that do not have the lockout device installed. Compatible...HKP-01500Now: $9.95Was: $18.95 -
On Sale
HK P2000 Magazine Body - 16 Round - RARE GPM
H&K Heckler & Koch
Now: $249.95Was: $300.95H&K P2000 GPM 16 Round Magazine Body - RARE PRICE IS PER MAGAZINE - SOLD INDIVIDUALLY. CONDITIONS VARY. PLEASE REFER TO PHOTOS AS THE MAGAZINE BODIES PICTURED ARE THE LAST 4 WE HAVE AVAILABLE. This rare and genuine European 16-round magazine body is...HKP-99190Now: $249.95Was: $300.95