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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HK91, G3, PTR Central Buttstock Section - OD Green - Used
H&K Heckler & Koch
$5.99H&K HK G3, HK 91, PTR Central Buttstock Section - OD Green - Used USED German G3, 91, PTR Central Butt stock Section- Green in color. This stock section is no longer being manufactured as the HKG3, HK91 are out of production. Each surplus section is...HKP-17139$5.99 -
Out Of Stock
Outers Barrel Bore Cleaner - 9mm
$7.95Outers 9mm Bore Cleaner .357/.38 Manufactured by the makers of the original BoreSnake and will work with all 9mm pistol and rifles. Features: Fast, quality bore cleaning system Size stamped on brass weight Washable Make your day shooting...HKP-19922$7.95 -
HK G3 Buffer Screw Crush Washer
H&K Heckler & Koch
$0.95HK G3 Crush Washer For Buffer ScrewHKP-16984$0.95 -
HK MP5, HK94 Modular Handguard-M-LOK
DTAC Dakota Tactical
$165.95DTAC MP5, HK94 Modular Handguard - M-LOK Features: Made in the USA (922r compliant part) M-LOK accessory compatible 11 ergonomically placed full-slots and 5 half-slots yielding 22 possible accessory locations for maximum versatility Exclusive extended...HKP-17806$165.95 -
HK USP Firing Pin - New Style
H&K Heckler & Koch
$79.95HK USP New Style Firing Pin A must-have spare and replacement part for your HK pistol, as the firing pin is one of the most important spare parts to have on hand. Brand new HK German manufactured. Compatible with: HK USP 9mm HK USP 40 Cal HK USP .45 All...HKP-01565$79.95 -
On Sale
HK VP9 Gen 2 V.2 Rail Mount Compensator
HKP HK Parts
Now: $52.46Was: $149.95HKP HK VP9 Gen 2 V.2 Rail Mount Compensator CLEARANCE COMPENSATORS ARE NOT AVAILABLE IN ANY COLORS ASIDE FROM WHAT IS PURCHASABLE ON THE WEBSITE. WE WILL NOT BE RUNNING THESE COMPENSATORS AGAIN SO IF THEY COLOR YOU WANT IS SOLD OUT, WE ARE SORRY...HKP-21141-MNow: $52.46Was: $149.95 -
HK G3 Buffer Screw Locking Washer
H&K Heckler & Koch
$0.95HK G3 Buffer Screw Locking Washer Used in good, working conditon.HKP-16983$0.95 -
HK P30 Magwell - EDC
HKP HK Parts
$59.95EDC Tactical Magwell - HK P30 - Magwell Our EDC magwell was redesigned for a much faster and reliable mag reloads. With a increased funnel area, the EDC magwell consistently guides you to the correct position resulting in no-look magazine insertions and...HKP-21429-M$59.95 -
HK45, VP9, L Line Holster for Lights and Lasers
Comp-Tac
$84.95 - $85.95Comp-Tac HK VP9/P30/45 L Line Holster for Lights/Lasers The L Line Holster OWB- A Multi-Fit Solution for Firearms with Light or Laser Attachments Features: Modular design allows one holster to be used with multiple firearms and lights, saving...HKP-18825-M$84.95 - $85.95 -
HK91, G3 Buffer - Folding Stock - Replacement
Choate
$3.95Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3HKP-00211$3.95 -
HK416, MR556 ARC-Fire Trigger - 3-Position - Ambi Controls
AS Designs
$297.95HK416, MR556 3-Position ARC-Fire Trigger with Ambidextrous Controls AS Designs' ARC-Fire (Active Reset Clutch) trigger is an innovative take on forced reset triggers. The trigger is reset immediately after each shot, resulting in rapid follow-up...HKP-22429$297.95 -
HK MP5 .22LR UMP Style Folding Stock
HKP HK Parts / Heckler & Koch
$249.95HK MP5 .22LR - German UMP Style Folding Stock w/ HK Parts Stock Adapter New complete MP5 .22lr folding stock with UMP style stock section. Each stock uses a UMP style stock for a longer length of pull and a includes a new CNC machined stock adapter...HKP-20167$249.95