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 VP9 Optic Plate - Holosun K, Shield RMSc - Optics Ready - Red Dot Pistol Mount
H&K Heckler & Koch
$50.95Heckler and Koch Holosun K Optics plate for VP9 OR Models Genuine Heckler and Koch optics plate for HK VP9 Optics Ready (VP9OR) pistols. Use factory filler plate screwHKP-22381$50.95 -
HK45, USP Magazine Spring - Extended
HKP HK Parts
$11.95HK45/USP Extended Magazine Spring .45 ACP Replacement spring for +7 and +10 HK Parts magazine extensions. Compatible With: HK45/HK45 Compact HKHKP-22299$11.95 -
On Sale
HK91, G3, PTR Magazine - 10 Round - Steel - BLEMISHED
H&K Heckler & Koch
Now: $42.71Was: $89.95H&K 91/G3/MSG90 (7.62x51/.308) 10 Round Magazine - Steel - BLEMISHED MAGAZINE BODY HAS PITTING - CONDITION AND COLOR MAY VARY (see pictures) - Price is per unit. COSMETICALLY BLEMISHED PARTS ARE FULHKP-01607-BNow: $42.71Was: $89.95 -
Out Of Stock
HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi
H&K Heckler & Koch
$177.95H&K MR556/MR762 Ambi Slimline Buttstock Snap Hook Adapter Genuine H&K snap hook adapter designed to provide ambidextrous sling attachment points for MR556 and MR762 slimline buttstocks. Compatible...HKP-22100$177.95 -
HK VP9 Optic Plate - Holosun 509T - Red Dot Pistol Mount
H&K Heckler & Koch
$50.95H&K VP9 509T Optic Plate This precision-machined mounting plate allows secure attachment of the Holosun 509T red dot sight to the H&K VP9 optics-ready slide. Built from durable materials, it ensures...HKP-21913$50.95 -
HK45 E2 Magazine with Extension - 15 Round
HKP HK Parts
$113.95HKP HK Parts 15 Round E2 Magazine for HK45 HK45 and HK45 Tactical +5 magazine extension. Paired with a new HK German 10 round HK45 magazine for a total capacity of 15 rounds. Ideal for competition...HKP-21803-M$113.95 -
B&T SPC9, SPC10, SPC45 Stock Conversion Kit, Complete
B&T Brugger & Thomet
$165.00Brugger and Thomet Complete Stock Conversion Kit for B&T SPC9, SPC10, SPC45 Factory B&T kit to convert the B&T retractable brace to a retractable stock configuration. Includes:HKP-21731$165.00 -
On Sale
ACR Folding Stock - Section
Magpul
$22.92 - $25.17Magpul ACR Folding Stock Section Factory Magpul replacement folding stock section for ACR Stocks. No hinge pin included. only a few on hand. Once they are all gone there will be no more! Don't miss...HKP-21302-M$22.92 - $25.17 -
On Sale
HK MP5, SP5 Binary Trigger Group - SEF Navy - BFSIII - 9mm
FA Franklin Armory
Now: $731.21Was: $1,299.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – SEF – Contoured Complete Franklin Armory BFSIII HK-C1 binary trigger pack assembly configured in a 3-position pictogram contoured...HKP-20004-MNow: $731.21Was: $1,299.95 -
HK MP5 Stock Adapter
HKP HK Parts
$149.95HKP MP5 Stock Adapter Our HK Parts stock adapter was made from a solid billet of CNC machined aircraft grade aluminum with QD sling attachment points. Properly buffered with factory correct “H”...HKP-20677$149.95 -
HK VP9 Optic Plate #3 - C-More STS2 - Red Dot Pistol Mount
H&K Heckler & Koch
$51.95Optics Plate #3 C-More STS2 - HK VP9, VP9L OR, VP9SK OR Steel HK OEM optics plate for mounting C-More STS2 optics. Compatible With: HK VP9 OR, VP9 Tactical ORHKP-19254$51.95 -
On Sale
HK VP9SK Compensator - Quick Detach
HKP HK Parts
Now: $69.71Was: $149.95Comp Weight™ Compensator- Quick Detach - HK VP9SK - HKP Easy on, easy off- Quick Detach technology The HK Parts VP9SK Comp Weight™ is the world's first quick detach Comp Weight™, compensator. That...HKP-18151Now: $69.71Was: $149.95