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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Out Of Stock
HK SP5 Case Deflector - 9mm, 10mm, .40 S&W
H&K Heckler & Koch
$49.95Heckler and Koch Case Deflector for 9mm, 10mm, and .40 S&W HK SP5 Factory HK case deflector for the SP5 platform chambered in 9mm, 10mm, and .40 S&W.HKP-02170$49.95 -
On Sale
HK VP9 Optic Plate #12 - Aimpoint ACRO P-1, P-2 - Red Dot Pistol Mount - Alloy
HKP HK Parts
$19.09 - $20.97HK VP9 Series Optics Ready #12 - Aimpoint ACRO P-1, P-2 - Optic Mount - Aluminum The finest all aluminum mounting solution for your HK VP9 series optic ready model. Each unit comes with 2 T20 steel...HKP-21510-M$19.09 - $20.97 -
On Sale
HK MP5K, SP5K, SP89 Folding Stock Adapter
HKP HK Parts
Now: $125.96Was: $139.95HKP MP5K/SP5K/SP89 Folding Stock Adapter The HK Parts folding stock adapter is the best option to attach onto the UMP style stock or the B&T folding stock. Will also work on any other stocks that...HKP-20799Now: $125.96Was: $139.95 -
Out Of Stock
HK MP5, HK94, SP89 Magazine Pouch - 3 Straight Mags - 30 Round - Canvas
H&K Heckler & Koch
$24.95German H&K MP5 9mm 30 Round Magazine Pouch - Fits 3 Straight MP5 Mags - Used to Good Used to good shape German HK magazine Pouch for HK MP5 sticks mags. This is the first production MP5 style of...HKP-20728$24.95 -
Out Of Stock
HK G36K Piston Rod Assembly, Complete
H&K Heckler & Koch
$89.95New Heckler and Koch German Gas Piston Rod and Spring Assembly for HK G36K Great for spare parts or to use on that HK SL8-G36 conversion. Compatible with: G36KHKP-00284$89.95 -
HK91, G3 Complete Fixed Stock - Black
PTR
$229.95New HK91, G3, PTR-91 US-Made (PTR-91 Manufactured) Fixed Stock Made from all German & US-made HK parts. This stock will fit any of the HK G3 & HK 91 & PTR rifles. This stock also counts as one...HKP-00896$229.95 -
HK MP5, HK33, HK53, HK93, G3 Housing - SEF Navy - Polymer - Clipped and Pinned
H&K Heckler & Koch
$179.95HK Heckler and Koch SEF Navy Polymer Housing Clipped and Pinned for 9mm, .308, and .223 HK MP5, HK33, HK53, HK93, HKG3 This navy style housing fits all shelved receivers. Specifications:HKP-00164$179.95 -
Out Of Stock
HK MP5, HK33, HK53, HK93 A2 Fixed Stock
H&K Heckler & Koch
$139.95H&K 93,33,53 and MP5 A2 Fixed Stock This H&K G3 stock section and buttpad combo is designed to enhance the functionality and comfort of your HK 93,53 and MP5 firearm. The stock section provides...HKP-21818-M$139.95 -
On Sale
Sig P365 +3 Magazine Extension
Tactical Precision MFG
Now: $14.03Was: $44.95TPM Sig P365 +3 Magazine Extension This extension is made from machined 6061 Aluminum. This magazine extension will increase capacity, increase reload speed and mag drops, and overall functionality...HKP-21278-MNow: $14.03Was: $44.95 -
On Sale
HK G36 FBI 0,1 Lower Complete
Now: $449.96Was: $499.95HK German G36, G36K, G36C - FBI (0,1) Lower This is a popular item for use on the SL8 to G36 conversions. The (0,1) G36 lowers are hard to obtain, and availability is limited.HKP-00628Now: $449.96Was: $499.95 -
HK VP9L Barrel - 9mm - 5.6" - Threaded 13.5x1 LH
RCM
$262.50RCM HK VP9L 9mm Tactical Barrel - Threaded 13.5x1 LHHKP-19202$262.50 -
On Sale
HK G36C Gas Piston Rod and Spring - Complete Assembly
GSG9
Now: $74.66Was: $82.95GSG9 Complete German Gas Piston Rod and Spring Assembly for HK G36C A must have item for HK G36C conversions from SL8's or for spares for your G36C MG.<HKP-18250Now: $74.66Was: $82.95