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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HK Ambidextrous Sling Pin Locking Knob
H&K Heckler & Koch
$11.95New HK German Ambidextrous Sling Pin Locking Knob These are common replacement items, they can become loose as the O-ring wears and falls off. Be sure to order extra O-rings to avoid losing the locking nut. This is a common replacement part for those...HKP-01042$11.95 -
On Sale
HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
HKP HK Parts
Now: $7.46Was: $19.95HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...HKP-18677-BL-BNow: $7.46Was: $19.95 -
Out Of Stock
HK416 Full Auto Ambi Selector Lever Kit - 3 Position Polymer Selectors
H&K Heckler & Koch
$159.95HK416 Full Auto Ambi Selectors Kit - German HK - 3 Position Each set comes complete with everything you will need to upgrade your HK 416 to an ambi selector lever set up. The HK 416A5 polymer selector levers will be helpful for a quick visual...HKP-20398$159.95 -
HK Style 9mm 3 Lug Suppressor Adapter - Threaded 13.5x1 LH
Kaw Valley Precision
$39.95Kaw Valley Precision 9mm 3-Lug Suppressor Adapter - Threaded 13.5x1 LH The KVP 3-Lug adapters are precision manufactured to replicate the popular HK pattern 3-Lug interface, with exceptional concentricity of ID and OD surfaces. Machined on a high...HKP-19993$39.95 -
HK MP5K, SP89, SP5K Brace With Direct Fit Adapter
SB Tactical
$229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones Side Folding Pistol Stabilizing Brace with HK Parts Adapter. The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum...HKP-19451$229.95 -
Out Of Stock
HK416, MR556, HK417, MR762, AR-15 Selector Detent Spring
H&K Heckler & Koch
$9.99Heckler and Koch HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16HKP-02657$9.99 -
HK UMP, USC, G36, SL8 Front Night Sight
XS Sights
$84.95XS Sight Systems Trijicon - Front Night Sight Standard dot, the perfect size and fitment. This is a direct replacement for the factory sight. The night sight installs within a couple of minutes. The custom sight will enable you to get on target quicker...HKP-00808$84.95 -
HK UMP, USC Lower Axle
H&K Heckler & Koch
$9.95HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model.HKP-01893$9.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - 10 Pack
KCI
$349.95KCI 30 Round MP5 9mm Magazine - 10 Pack Features: Latest generation and factory fresh, individually sealed magazine 30-round capacity 9mm caliber marked (9mm x 19) Curved for more reliable feeding with steel chrome follower All steel...HKP-22058$349.95 -
HK91, G3, HK33, HK93 Bipod Replacement Feet Set
HKP HK Parts
$18.95HKP G3/33/91/93 Bipod Replacement Feet - Set of Two (2) Replacement feet set for original H&K bipods. Our replacement feet are suitable to replace both steel and plastic feet in factory HK bipods. Each kit includes a left and right bipod foot...HKP-21310$18.95 -
HK USP Tactical Rail Mount Compensator, Threaded Barrel - .45 ACP
HKP HK Parts
$179.95HKP HK USP/Tactical .45 ACP Rail Mount Compensator with Threaded Barrel Crafted from aircraft-grade billet aluminum and finished in durable cerakote. Features multiple muzzle ports and the additional weight to significantly reduce both muzzle flip and...HKP-21343$179.95 -
On Sale
HK MP7 Poster
H&K Heckler & Koch
Now: $3.71Was: $14.95MP7 Factory German Poster Limited edition HK German post of the iconic MP7. Limited supply! Specifications: Height - 24" Width - 18"HKP-16689Now: $3.71Was: $14.95