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 Fixed Stock with Enhanced Heavy Buffer - Alpine Green - Surplus
H&K Heckler & Koch
$129.95HK German Surplus G3, 91, PTR Stock Complete with Enhanced Heavy Buffer Installed - Alpine Green The Alpine green stock was the last version that the German military produced and is the darkest green version available. All stocks are 90's...HKP-18934$129.95 -
HK G3 Parts Kit - Tungsten Filled Carrier - (Greek HK Contract)
EBO
$389.95HK Contract Greek EBO G3 .308/7.62 X 51mm Surplus Parts Kit Rare and HK Greek EBO Surplus G3 parts kits with the Tungsten filled bolt carriers. Each demilled parts kit comes with all parts from a functional HK G3 full auto rifle except the barrel and...HKP-17695$389.95 -
HK90 Series Cocking Tube Extrusion - 12" Section
H&K Heckler & Koch
$54.95H&K Factory Cocking Tube Extrusion 12" Section HK cocking tube section is perfect for custom HK cocking tube projects. Overall length is 12" long. All steel and ready for that custom project or custom build. Perfect for custom cocking tube...HKP-13487$54.95 -
On Sale
HK91, G3, PTR TWO Magazines and Rubberized Mag Pouch - 20 Round
H&K Heckler & Koch
Now: $29.95Was: $49.95H&K 91/G3/MSG90 (7.62x51/.308) 2-20 Round Aluminum Mags W/ Rubberized Mag Pouch 2 new/like new HK German 20 round aluminum magazine with green rubberized mag pouch bundle deal: 2 20 round aluminum magazines with new green rubberized mag pouch...HKP-15793Now: $29.95Was: $49.95 -
HK MP5 Trunnion - .40 S&W / 10mm
HKP HK Parts
$139.95MP5 40 & MP5 10mm Trunnion Machined from ordnance-grade steel and heat-treated to factory specs. Each has the bullet guides pre-installed and included. These are the best USA-made trunnions on the market. Machined to HK spec, making the installation...HKP-02737$139.95 -
Out Of Stock
HK MP5 Field Cleaning Kit - .40 S&W / 10mm
HKP HK Parts / Heckler & Koch
$79.95H&K MP5 40/10 Field Cleaning Kit This cleaning kit is a genuine HK factory cleaning kit and is recommended by HK for all HK pistol owners. Includes: Saf-T-Clad Cleaning Rod Accessory Adapter Section #8-32 Patch Holder Chamber Face...HKP-00340$79.95 -
HK MP5, HK33, HK53, HK93 Grip Frame Housing - 2 Position S,F,Pictogram - Clipped, Pinned - 9mm, 5.56 / .223
PTR
$99.95PTR HK MP5 & 93/53/33 (9mm & 5.56/.223) 2 Position (S,F Pictogram) Grip Frame Housing - Clipped & Pinned This is made by PTR-91 to exact HK specs. These housings come clipped and ready for the semi-auto shelf. This HK aftermarket trigger...HKP-00840$99.95 -
HK416, MR556, HK417, MR762 Rear Sight - Flip Up 2mm - RAL8000
H&K Heckler & Koch
$446.95Heckler and Koch HK416, MR556 Flip Up 2mm Rear Sight - RAL8000 Factory HK quick change, flip up rear sight in RAL 8K with a 2mm aperture. Attaches directly to any standard Picatinny rail using a self-contained quick-attach push button system. Designed...HKP-18500$446.95 -
HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308
HKP HK Parts
$19.95HKP HK Cleaning Brush - Barrel Flute - .30 Cal - 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a G3/91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render your HK...HKP-22317$19.95 -
Out Of Stock
HK416, MR556 Magazine Catch - Ambi
H&K Heckler & Koch
$92.95H&K HK MR556, HK416 Mag Catch - Ambi Factory HK ambidextrous magazine catch/release. Compatible With: HK416 A5 HK MR556 A4 NOT compatible with earlier variants with single-side controlsHKP-22289$92.95 -
On Sale
HK MP5 Rear Sights Locking Washer
MKE
Now: $1.95Was: $2.45MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: Century Arms AP5 HK MP5/MP5K HK SP5/SP5K Will work with all 90 series firearmsHKP-22240Now: $1.95Was: $2.45 -
HKP HK P30 EDC Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK P30 EDC Magwell - Ultra Low Profile The smallest and most streamlined EDC magwell for the HK P30, now featuring a fully functional funnel designed for rapid, seamless reloads. Crafted from durable aluminum and treated with type 3 hard coat...HKP-22189-M$59.95