Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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Out Of Stock
HK Factory Hard Case
H&K Heckler & Koch
$0.00H&K Factory Hard Case H&K hard shell case. This is the perfect case that will guarantee to protect your most prized possessions. Only a few in stock so get them before they are all gone.<HKP-20564$0.00 -
HK SL8 Adjustable Buttstock Piece - Used - Gray
H&K Heckler & Koch
$19.95HK SL8 Adjustable Buttstock Piece Gray in Color - USEDHKP-20051$19.95 -
Out Of Stock
HK G36K Barrel - 5.56 / .223 - 12.5"
HKP HK Parts
$499.95HKP HK G36K Barrel Brand new HK G36K barrel made from 416 stainless steel and nitrided, uninstalled & unfired. The G36K barrel uses a factory German or USA spec G36K/G36C gas block. Counts as one USA...HKP-18194$499.95 -
HK P30 Barrel - .40 S&W - 3.85"
H&K Heckler & Koch
$274.95HK P30, P30S .40 Barrel New HK German P30 standard factory length.HKP-02412$274.95 -
Out Of Stock
HK USP .45 Elite Incomplete Slide
H&K Heckler & Koch
$699.95USP .45 Elite - Incomplete SlideHKP-20560$699.95 -
On Sale
HK USC 45 Barrel - .45 ACP - Used
H&K Heckler & Koch
Now: $366.71Was: $695.95Barrel - HK USC 45 in Exc + shape HK German factory USC 45 barrel in excellent + condition. Rare and hard to find.HKP-20471Now: $366.71Was: $695.95 -
On Sale
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - OD Green
SB Tactical
Now: $265.46Was: $294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - OD Green MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling...HKP-20354Now: $265.46Was: $294.95 -
On Sale
HK P30SK Grip Wrap for Small Backstraps - Rubber
Talon Grip
Now: $12.74Was: $19.99TALON Grip - H&K P30SK - Rubber Black - Small Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so...HKP-20239Now: $12.74Was: $19.99 -
On Sale
HK MP5K Trigger Housing - SEF Navy Style - .40 S&W, 10mm
H&K Heckler & Koch
$88.95 - $143.96H&K MP5K 40/10 SEF Navy Style Trigger Housing HK German MP5K 40/10 SEF Navy style clipped & pinned housing. New factory German housing that has the cutout for the bolt hold open found on the MP5...HKP-20137-M$88.95 - $143.96 -
On Sale
AK Binary Trigger - Curved - BFSIII - 9mm
FA Franklin Armory
Now: $485.99Was: $534.95Franklin Armory BFSIII® AK-C1 for the AK Platform - 9mm The Binary Firing System GEN 3 (BFSIII) is a 3-position trigger. In position 3 it fires one round on pull and one round on release, making...HKP-19730Now: $485.99Was: $534.95 -
HK MR762 Drop Safety Catch
H&K Heckler & Koch
$19.95H&K HK MR762 Drop Safety Catch Compatible With: HK MR762HKP-16615$19.95 -
HK MR762 Hammer Complete
H&K Heckler & Koch
$179.95H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762HKP-16614$179.95