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
HK90 Series Mag Paddle Bushing with Pin for Semi Builds
DTAC Dakota Tactical
Now: $8.90Was: $9.89DTAC Mag Paddle Bushing With Pin For Semi-Builds This part is made 100% in the US from 17-4 stainless steel. Latest production with patent pending anti-binding enhancement upgrade. Accurate tolerance for easy movement with minimal play. It has an...Now: $8.90Was: $9.89 -
On Sale
HK VP9 Optic Plate #8 - Holosun 407K, 507K - Red Dot Pistol Mount
HKP HK Parts
Now: $39.96Was: $49.95HK VP9 Series Optics Plate #8 - Holosun 407K/507K Optic Mount - Steel The finest all steel mounting solution for your HK VP9 Series Optic Ready model. New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of...Now: $39.96Was: $49.95 -
On Sale
HK91, G3 Rubberized Mag Pouch - Surplus
Now: $3.71Was: $9.95German Surplus Green Rubberized Mag Pouch Used Compatible With: HK G3, 91, PTR & CETME Custom HK builds & HK Clones Please note: These range in shades of green color from OD green to Jungle green. If you have a preference please make a note...Now: $3.71Was: $9.95 -
On Sale
HK Semi Auto Spacer with Elbow Spring - Match Grade
PTR
Now: $10.75Was: $11.95PTR Semi Auto Spacer With Elbow Spring - Match Grade For use on all HK semi-auto trigger packs. It's a must-have for those converting a full auto trigger pack to semi-auto. This unit provides a "match" grade feel to your trigger pull.Now: $10.75Was: $11.95 -
On Sale
HK P30, P30L, P30SK Straight Trigger
Grayguns
Now: $85.50Was: $95.00Grayguns HK P30/P30L/P30SK Straight Trigger Designed by Keith Hosey, Grayguns' director of gunsmithing, the HK P30 Straight Trigger is a first-of-its-kind in the market. Fits all P30 variants. Reduces over-travel while featuring a 90-degree optimal...Now: $85.50Was: $95.00 -
On Sale
HK MP5K Stock - Retractable
Safety Harbor Firearms
Now: $251.95Was: $279.99KES HK MP5K Stock The all-new KES for the MP5k is designed to fit HK clones with two pins affixing the rear receiver cap. Specifications: Guide rods slide into the existing slots present on the receiver Rods machined to go underneath the reinforcing...Now: $251.95Was: $279.99 -
Out Of StockOn Sale
HK USPC, P2000 Magazine - 9mm - 13 Round
H&K Heckler & Koch
Now: $44.10Was: $49.00H&K HK 13 Round USPC/P2000 9mm Magazine Each magazine is a current HK German manufacturer. Brand new and factory fresh. Compatible With: HK USP Compact 9mm HK P2000 9mm Fits the P2000SK will stick out below the magwell when installedNow: $44.10Was: $49.00 -
On Sale
HK MP5, SP5K Optic Mount - 5 - 5/8" - MLI - Picatinny Rail
H&K Heckler & Koch
Now: $323.99Was: $359.99HK German Low Profile Mount for HK MP5, SP5 & MP5K, SP5K - MLI HK German manufactured HK MP5, MP5K low profile Picatinny scope mount. Manufactured at HK in Germany as part of the "Mid-Life Improvement" upgrade for the HK MP5 family of firearms. The...Now: $323.99Was: $359.99 -
On Sale
HK MP5, SP5 Locking Piece #27 - 90 degree
RCM
Now: $31.46Was: $34.95HK MP5, SP5 Locking Piece #27 - 90 degree Machined and properly heat treated from ordnance grade steel. A must have component for users running a suppressed set up or cycling a variety of ammunition. This will assist with fine-tuning pistol...Now: $31.46Was: $34.95 -
On Sale
HK MP5 Trigger Pack - Full Auto - Complete - 9mm
H&K Heckler & Koch
Now: $314.95Was: $349.95H&K Heckler & Koch - HK MP5 Trigger Pack - Full Auto - Complete - 9mm German Each factory full auto trigger pack includes a new 9mm 3rd generation German ejector lever installed. We do NOT use Pakistani, MKE, or US-made ejector levers in our...Now: $314.95Was: $349.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Buffer Screw Locking Washer - Zinc Plated
H&K Heckler & Koch
Now: $0.23Was: $0.25HK G3, 91, PTR & HK93, 33, 53 - Locking Washer For Small Buffer Screws New not surplus latest generation of G3, 91, PTR toothed locking washer. Zinc plated (galvanized) as to not corrode or rust like the older style units found on surplus stocks...Now: $0.23Was: $0.25 -
On Sale
HK MP5, SP5 Stock - A2 - Fixed
H&K Heckler & Koch
Now: $170.95Was: $189.95HK German MP5, SP5 & HK94 - A2 Fixed Buttstock Compatible With: HK MP5, 94, HK SP5 MP5SD MP5 F MP5 40/10 (buffered stock would be optimal) Zenith Z5-RS, Omega MP5, DT54, TPM MP5, etc. MAC-5 clones may require custom fitment. Modified...Now: $170.95Was: $189.95