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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HK MP5K, SP5K ACR Folding Stock With Adapter - Picatinny
F5 MFG
$207.16 - $324.95HK MP5K, SP5K ACR Folding Stock w/Adapter - Picatinny The HKP picatinny end cap with the F5 ACR stock allows users to easily swap this, and other stocks, between their K and other platforms. This...HKP-22351-M$207.16 - $324.95 -
On Sale
HK45C Railok™ Threaded Barrel Compensator - BLEMISHED
HKP HK Parts
Now: $72.71Was: $189.95HKP HK45C Railok™ Threaded Barrel Compensator - BLEMISHED ACTUAL UNIT MAY HAVE MARKINGS THAT DIFFER SLIGHTLY FROM THE ONE PICTURED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD ASHKP-21264-BNow: $72.71Was: $189.95 -
Out Of Stock
HK CC9 Magazine Follower - 10 and 12 Round
H&K Heckler & Koch
$5.95H&K CC9 - Magazine Follower - 10 and 12 Round Magazines Follower for HK CC9 10-round and 12-round magazines. Manufactured in Germany by H&K. Compatible With:HKP-22146$5.95 -
HK CC9 Extractor Roll Pin
H&K Heckler & Koch
$5.95H&K CC9 Extractor Roll Pin Made in Germany, the extractor roll pin for the CC9 secures the extractor to the slide.HKP-22132$5.95 -
Out Of Stock
B&T APC Stock - Folding - MBT
B&T Brugger & Thomet
$365.00B&T MBT Folding Stock for APC (Stock Only, No Hydraulic Buffer) Features: 8 position length adjustment Telescoping cheek riser w/ 3 position height adjustmentHKP-21738$365.00 -
Carbon-Cleaner - 150 ml Pump
SchleTek
$16.95SchleTek Carbon Cleaner 150 ml Pump SchleTek Carbon Cleaner is a powerful, fast-acting solution designed to remove stubborn carbon buildup from firearms, suppressors, bolts, gas systems, and other...HKP-21729$16.95 -
HK MP5K Parts Kit - 10mm - Pistol Build
HKP HK Parts
$1,889.95HKP MP5K 10mm Pistol Build Kit MP5K 10mm complete pistol build kit. Featuring the latest in highest quality components for an unparalleled build. Equipped with a 9/16x24 3-lug threaded barrel to...HKP-21533$1,889.95 -
HK G36 Flash Hider with Interface for Rotex
B&T Brugger & Thomet
$144.99B&T G36 (5.56/.223) Flash Hider with Interface for Rotex Compatible With: HK G36HKP-21531$144.99 -
On Sale
HK MP5 Alpha Folding Stock With Direct Fit Adapter
MI Midwest Industries
$267.72 - $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,...HKP-21512-M$267.72 - $419.95 -
Out Of Stock
HK MP5K Folding Stock - MBT
B&T Brugger & Thomet
$569.95B&T HK MP5K - MBT Stock B&T MBT folding stock for HK MP5K. Polymer stock and adapter.HKP-21421$569.95 -
On Sale
HK MP5 Stock With Direct Fit Adapter
HKP HK Parts / Magpul
$121.09 - $189.95HK MP5 Stock With Direct Fit Adapter MP5 DT Magpul stock ready to install on any in-spec MP5 receiver or clone. We take our AR MP5 Adapter and attach it onto a mil-spec buffer tube before combining...HKP-21402-M$121.09 - $189.95 -
Out Of Stock
HK MP5 Barrel - 10mm - Threaded 9/16x24 with 3 Lug
RCM
$279.95RCM HK MP5 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5 with the RCM HK MP5 10mm Barrel. This barrel is precision engineered for superior accuracy and durability. This barrel...HKP-21158$279.95