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 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 -
HK SP5 Stock With Direct Fit Adapter
Magpul
$189.95HK SP5 Stock With Direct Fit Adapter SP5 DT Magpul stock ready to drop in on any in-spec SP5 receiver or clone. We take our AR SP5 Adapter and attach it onto a mil-spec buffer tube. We then drop it on to the new Magpul DT Carbine stock. This is a great...HKP-21411-M$189.95 -
HK VP9, P30 +15 Magazine Extension Kit - Black
HKP HK Parts
$74.95Magazine Extension Kit +15 – Black - HK VP9, HK P30 HK Parts magazine extension +15 kit adds 15 additional rounds to the HK VP9/P30 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends...HKP-21340$74.95 -
On Sale
HK VP9 Railok™ Threaded Barrel Compensator - BLEMISHED
HKP HK Parts
Now: $99.95Was: $189.95HKP HK VP9 Railok™ Threaded Barrel Compensator - BLEMISHED CONDITION MAY VARY. SEE PHOTOS. SOLD INDIVIDUALLY. THIS COSMETICALLY BLEMISHED ITEM IS FULLY FUNCTIONAL. THIS ITEM IS SOLD AS IS AND NOT ELIGIBLE FOR A RETURN. The HK Parts Railok™...HKP-21163-BNow: $99.95Was: $189.95 -
On Sale
JMAC G36K/HK33 Compensator (KeyMicro) - Threaded 15x1
JMAC Customs
Now: $86.95Was: $109.95JMAC G36K/HK33 (5.56/.223) Compensator (KeyMicro) - Threaded 15x1 In order to use this device with a suppressor, it must be installed by a professional to ensure it is properly mounted and aligned. Do NOT shoot without checking alignment with bore rods...HKP-21257Now: $86.95Was: $109.95 -
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 / Faux Suppressor - 8.85" - Threaded 15x1 RH
USA
$179.95HK MP5/K 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 length: 8...HKP-20890$179.95 -
Out Of Stock
HKP HK MP5 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing
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: HK MP5HKP-20839$129.95 -
On Sale
Tikka, CTR Bolt Shroud
Tactical Precision MFG
Now: $28.95Was: $54.99Tactical Precision MFG Tikka Bolt Shroud made of Titanium This titanium Tikka bolt shroud is durable and corrosion resistant. Features: Made in the USA Dimensions: 1 9/16" x 7/8" x 3/4" Compatible With: Tikka T3, T3x, and CTR rifles NOT...HKP-20783Now: $28.95Was: $54.99 -
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 -
Geissele HK 416 10.5" M-LOK Handguard
Geissele
$499.95Geissele HK 416 10.5" M-LOK Handguard 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 and...HKP-20327$499.95