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
HK91, G3, FMP Locking Piece - USED
H&K Heckler & Koch
Now: $6.70Was: $14.95Heckler and Koch Locking Piece for HK FMP HK91 and G3 - USED SOLD INDIVIDUALLY. USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOHKP-16712-USEDNow: $6.70Was: $14.95 -
M-LOK Angled Foregrip - Walnut
JMK
$43.95JMK Angled foregrip M-LOK - Walnut JMK's M-LOK covers feature an integrated hand stop to ensure a secure grip during use. They are an excellent choice for pairing with JMK M-LOK Covers, providing...HKP-22405-M$43.95 -
On Sale
Pistol Flash Hider - 9mm - 4 Prong - Threaded 1/2x28 - BLEMISHED
USA
Now: $40.46Was: $74.95HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 - BLEMISHED VARYING CONDITION SHOWN IN PHOTOS - SOLD INDIVIDUALLY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART ISHKP-01965-BNow: $40.46Was: $74.95 -
AP51 MOE PR Stock - PDW
Magpul
$249.95Magpul Century AP51 PDW MOE PR Stock Designed for the Century AP51 PDW platform, this adapter ensures a precise fit and solid lockup for stock installation. Built for durability and proper...HKP-22346$249.95 -
HK P30L MOD 1 Insert Kit - Picatinny Rail and Smooth Plate
HKP HK Parts
$28.95HKP HK Parts HK P30L Rail and Plate Insert - Replacement MOD 1 Insert Kit Replacement Picatinny rail and smooth plate inserts with hardware for the MOD 1 compensator.HKP-22218$28.95 -
On Sale
Century Arms AP51 Fixed Stock Backplate
HKP HK Parts / Heckler & Koch
Now: $80.96Was: $89.95H&K/HKP Century Arms AP51 Fixed Stock Backplate HKP's drop-in replacement backplate and recoil rod is expertly modified to fit the Century Arms AP51. Crafted to the precise length for optimal...HKP-22188Now: $80.96Was: $89.95 -
Out Of Stock
HK MP5 Buttstock Fork
H&K Heckler & Koch
$199.95H&K HK MP5/SP5 Stock Fork MP5 Replacement Stock Fork Section, expertly crafted in Germany. This robust fixed stock section boasts a classic forked design that guarantees exceptional shoulder support...HKP-22166$199.95 -
HK G3 Lower Housing - SEF - Steel - Push Pin - SURPLUS
H&K Heckler & Koch
$49.95H&K G3 SEF Steel Lower Housing - Push Pin - SURPLUS Priced for ONE Housing Unit- Condition Varies by Unit - Sold Individually UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE<HKP-22159$49.95 -
Out Of Stock
HK CC9 Trigger Complete
H&K Heckler & Koch
$55.95H&K CC9 Trigger Complete Genuine H&K complete trigger assembly for the CC9 pistol. Compatible With:HKP-22126$55.95 -
HK CC9 Ejector
H&K Heckler & Koch
$5.95H&K CC9 Ejector Made by H&K, this ejector for the CC9 pistol directs spent casings out of the ejection port during cycling.HKP-22114$5.95 -
HK G36, SL8 Handguard Eye Bolt - Slings, Bipods
H&K Heckler & Koch
$79.95H&K HK G36/SL8 Sling/Bipod Eye Bolt Factory HK sling and bipod eye bolt for H&K G36 and SL8 rifle models. Steel construction with a durable black finish. Installs easily into the forward portion of...HKP-21654$79.95 -
HK G36, G36K Optic Mount - Dual Rail, Emergency Sight - NATO Accessory Rail
B&T Brugger & Thomet
$397.95B&T HK G36/G36K (5.56/.223) Mounting Rail B&T NAR (Picatinny compatible) mounting rail for HK G36/G36K with emergency sight, dual rail.<HKP-21461$397.95