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 P30L Conversion Barrel - .40 S&W to 9mm - Threaded - 13.5x1
RCM
$214.95RCM HK P30L .40 to 9mm Conversion Barrel - Threaded - 13.5x1 This 9mm conversion barrel is a drop-in replacement that allows your P30L to shoot the ubiqutous 9mm cartridge. Includes a thread protector. Each barrel is made from ordnance-grade steel,...HKP-21788$214.95 -
Out Of Stock
HK416, MR556 Cleaning Kit - Green Pouch
H&K Heckler & Koch
$64.95H&K HK 416/MR556 Cleaning Kit with Green Pouch This is a genuine HK factory cleaning kit. Includes: Nylon storage bag, olive green Nylon brush Cleaning rod, 6 parts Barrel brush Chamber brush Oil brush Oil bottle, empty Cleaning wipes, 50 ea...HKP-21623$64.95 -
HK417, G28 Patrol Handguard - RAL8000
H&K Heckler & Koch
$1,268.95H&K HK 417/G28 Patrol Handguard - RAL 8000 Anodized Genuine HK 417/G28/MR762 patrol handguard anodized in RAL 8000. Compatible With: HK 417 HK MR762 G28HKP-21516$1,268.95 -
HK MP5 Alpha Folding Stock With Direct Fit Adapter
MI Midwest Industries
$419.95MI/HKP HK MP5 Alpha Folding Brace/Stock Adapter The Midwest Industries Alpha folding stock paired with the HK Parts Picatinny rail adapter offers unparalleled versatility. Adjust your length of pull, cheek riser, and butt pad to your exact style of...HKP-21512-M$419.95 -
Out Of Stock
HK PSG-1 Barrel - 7.62 / .308 - 25.5"
RCM
$849.95RCM Schneider PSG-1 Barrel Only the finest blanks in the industry can produce the best results on the range. Schneider Barrel Company makes that blank. This barrel will work perfectly with standard G3/91 trunnions, G3 barrel extensions, or...HKP-21193$849.95 -
HK MP5, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
$1,899.95Franklin Armory HK MP5 - BFSIII HK-C1 – Binary Trigger Group – Ambi 3 Position Housing 3 Position – pictogram – HK binary trigger group Binary triggers count as 4 922r compliant components. The components that count towards 922r...HKP-19182-M$1,899.95 -
HK MP5, MP5K Barrel Extension and Faux Suppressor - 8.85" - Threaded 15x1 RH
USA
$179.95HK MP5, MP5K Barrel Extension Faux Suppressor - 15x1 RH Perfect for that rifle build or for those looking for the MP5KN suppressed look. Dakota tactical review of this exciting new product on an MP5: DTAC Suppressor Review Specifications: Overall...HKP-20890$179.95 -
Out Of Stock
HK MP5 Trigger Housing - FBI 2 Position 0,1 Pictogram - 9mm
HKP HK Parts
$129.95US Made HK MP5 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing This 922r compliant housing features a 2 position (0,1) pictogram. Specifications: 2 Position Pictogram Markings: 0,1 FBI Style Housing Compatible With: MP5HKP-20839$129.95 -
On Sale
Bolt Knob - Drake - Aluminum
Tactical Precision MFG
Now: $20.95Was: $39.99Drake Bolt Knob - Aluminum These bolt knobs are made from aluminum and are finished a in midnight bronze Cerakote and will fit any 5/16-24 threaded bolt handle. Features: Material: aluminum Color: black Threading: 5/16x24 Compatible...HKP-20773Now: $20.95Was: $39.99 -
On Sale
HKP Racerback Tank - Gray
HKP HK Parts
Now: $7.46Was: $14.95HKP Racerback Tank - Gray Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this racerback is certain to catch an eye at the range! Features: Female fit Fine cotton High fidelity DTG...HKP-21028-MNow: $7.46Was: $14.95 -
HK416, MR556 Super Modular Handguard - 10.5" - M-LOK
Geissele
$499.95Geissele 10.5" M-LOK Handguard for HK416 The super modular rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut, but incorporates the strength, rigidity...HKP-20327$499.95 -
HK Standard Kit Pyramid Sight System
Outer Impact
$79.95The Heckler and Koch Pyramid Sight System The Pyramid Sight system offers four configurations (starter, standard, firefly, and master) for maximum flexibility. All of the HK pyramid sights systems feature steel front and steel rear sight bases...HKP-19963$79.95