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 German Sling - 3 Point - Factory Original - Green
H&K Heckler & Koch
$99.953 Point Factory Sling HK German - Green New HK German manufactured. This sling can be used as a 2-point or 3-point sling on your HK firearm. This sling is the factory HK-issued sling that came on the...HKP-00182$99.95 -
On Sale
AR-15 Buffer Tube - Mil-Spec
HKP HK Parts
Now: $23.96Was: $29.95Mil-Spec US-Made Buffer Tube Compatible With: All AR-15 style platforms Not correct length for HK rifles Features:HKP-02727Now: $23.96Was: $29.95 -
On Sale
HK MP5, MP5K Magazine Release Set - 4 Piece
HKP HK Parts
Now: $63.97Was: $79.95HKP HK Parts 4-Piece Magazine Release Set for HK MP5 and HK MP5K Each magazine catch set consists of 4 pieces and is a mixture of HK Germany and USA made partHKP-00912Now: $63.97Was: $79.95 -
HK UMP Lower - SF FBI 0,2 - Safe, Semi
HKP HK Parts
$495.99New HK Parts -UMP Safe, Semi FBI (0,1) Lower Each lower comes complete with 2 position settings (S, F) and all the internals. This item is ideal for the USC to UMP conversion or to keep as a spare...HKP-00590$495.99 -
HK416, MR556 HK417, MR762 Firing Pin Spring
H&K Heckler & Koch
$14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles...HKP-00928$14.95 -
Out Of Stock
HK33, HK53, HK93 Magazine - 40 Round - 5.56 / .223, 300 BLK
H&K Heckler & Koch
$119.95HK Heckler and Koch 40 Round Professionally Refinished Magazine for HK33, HK53, HK93 HK Factory German 40 round surplus magazine that has been professionally disassembled, inspected, bead blasted,...HKP-19797$119.95 -
On Sale
HK MP5, MP5K Dual Magazine Clamp Bundle - 9mm - Turkish Contract
HKP HK Parts
Now: $79.97Was: $99.95HKP HK Parts Dual 9mm Magazine Clamp Bundle for HK MP5 and HK MP5K - Turkish Contract HKP dual mag clamp with two Turkish contract 30 round 9mm MP5 magazines. Ideal for faster mag swaps and having...HKP-22492Now: $79.97Was: $99.95 -
On Sale
HK MP5 .22 Sling Clip Kit
HKP HK Parts
Now: $19.96Was: $24.95HKP HK MP5 .22 Sling Clip Kit Each unit will fit all models of the MP5 .22 that have the 3 mounting holes on the left side of the magwell. This item installs in a few mins and comes complete with all...HKP-15706Now: $19.96Was: $24.95 -
On Sale
Thread Protector - 9mm - 13.5x1 LH
HKP HK Parts
Now: $15.96Was: $19.95HKP 9mm Thread Protector - Threaded 13.5x1 LH This standard thread protector is perfect as a replacement or backup. It fits 9mm barrels with 13.5x1 LH threading. &nHKP-20745Now: $15.96Was: $19.95 -
HK45C, P30, USP Compact Firing Pin Spring
H&K Heckler & Koch
$8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With:HKP-01502$8.95 -
HK416, MR556, HK417, MR762 Pistol Grip with Storage - RAL8000
H&K Heckler & Koch
$89.95Heckler and Koch HK416, HK417 HK MR556 HK MR762 Battle Grip with Storage Compartment - RAL 8000 New HK German factory battle grip with storage compartment access located in the bottom of the grip...HKP-18584$89.95 -
HK416, MR556 Magazine - 10 Round
H&K Heckler & Koch
$74.95Heckler and Koch HK416 and HK MR556 Factory - 10 Round Steel Maritime Coated Magazine Compatible with AR-15 & M16 firearms. All steel & stainless construction, maritimeHKP-02421$74.95