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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On Sale
HK91, G3 Cocking Handle - Compliant - US
PTR
Now: $20.76Was: $25.95HK U.S. Made Cocking Handle - PTR Manufactured Compliant parts are hard to find and important for keeping your HK G3 and HK 91 build 922r compliant.HKP-00376Now: $20.76Was: $25.95 -
HK VP9 Optic Plate #12 - Aimpoint ACRO P-1, P-2 - Red Dot Pistol Mount - Steel
HKP HK Parts
$49.95HK VP9 Series Optics Ready #12 - Aimpoint ACRO - Optic Mount - Steel Each VP9 optic plate is CNC machined from a solid billet of ordnance grade steel, deburred, tumbled and Cerakoted for the...HKP-20030$49.95 -
On Sale
HK VP9SK Rail Mount Compensator
HKP HK Parts
Now: $74.96Was: $169.95HKP HK VP9SK Rail Mount Compensator Specifications: Length - 3 1/2 inches Height - 1 3/4 inches Weight - 4.8 oz.HKP-20037Now: $74.96Was: $169.95 -
HK MP5 Magazine Release - Extended Streamline - EMR
HKP HK Parts
$44.95HKP HK Parts Extended Magazine Release - EMR - Streamline for HK MP5 Elevate your paddle style mag release with the streamlined extended mag release. Crafted from a solid billet of...HKP-22175-M$44.95 -
HK VP9, VP40 Magazine Release - Enhanced
HKP HK Parts
$49.95Enhanced Magazine Release - Alloy - HK VP Series The oversized magazine release increases the overall surface area and makes it possible to release the magazine without changing the position of your...HKP-21099-M$49.95 -
HK45, USP, P30, P2000 Hammer Spring - 12LB Stock
H&K Heckler & Koch
$5.9512LB Stock Hammer Spring This is the spring used in some custom trigger jobs, along with other trigger return and firing pin block springs. This spring can be used on the P30 along with the light...HKP-01284$5.95 -
HK91, G3 Rear Sight - Surplus
H&K Heckler & Koch
$14.95HK German G3, 91, PTR Rear Sight Assembly Good - Very Good HK German factory sight. We offer the finest used German HK sights at the BEST price in the country. Each German HK used sight was hand...HKP-18092$14.95 -
HK USP40 Magazine - .40 S&W - 10 Round
H&K Heckler & Koch
$58.95 - $59.95Heckler and Koch 10 Round .40 S&W Magazine for USP40 Heckler and Koch 10-round magazine for full-size USP40 pistols chambered in .40 S&W. Factory magazine for proper fit and function on full-size...HKP-01205-M$58.95 - $59.95 -
HK Rear Sight Bearing
H&K Heckler & Koch
$1.99H&K Rear Sight Bearing Factory HK Part for all rear sight assemblies. This item is required for any HK diopter rear sight assemblies.HKP-00145$1.99 -
On Sale
Silicone Gun and Reel Cloth
Safariland
Now: $3.16Was: $3.95Safariland Silicone Gun & Reel Cloth Silicone gun cloth for all HK firearms to preserve and protect your firearms finish. Will also work for any firearm, magazine or part. A great way to protect your...HKP-17630Now: $3.16Was: $3.95 -
HK SP5, SP5K Thread Protector - 9mm - 1/2x28
HKP HK Parts
$19.95HKP HK SP5, SP5K 9mm Thread Protector - Threaded 1/2x28 Our thread protector is compatible with all factory-spec SP5 barrels and is a perfect replacement part. Specifications: Made in the USAHKP-21375$19.95 -
On Sale
M-LOK Rail Section - 5 Slot
Magpul
Now: $15.64Was: $18.95Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted...HKP-19568Now: $15.64Was: $18.95