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
HK33 A3 German Parts Kit
H&K Heckler & Koch
Now: $3,249.95Was: $3,389.95Heckler and Koch HK33 A3 Parts Kits - Surplus Rare HK33 parts kit professionally de-milled and prepared in accordance with BATF specifications. This configuration includes the A3 collapsible stock, factory 0, 1, 25 trigger group, wide handguard, HK...HKP-20723Now: $3,249.95Was: $3,389.95 -
HK MP5SD Parts Kit
H&K Heckler & Koch
$8,799.95H&K HK MP5SD German Parts Kit Genuine German H&K MP5SD parts kit in good condition. Ultra rare offering with all highly desirable parts including a like-new Navy 3 position trigger group with ESSL, H&K A3 collapsible stock, and the original...HKP-20641$8,799.95 -
HK MP5K-PDW German Parts Kit
H&K Heckler & Koch
$7,199.95Heckler and Koch HK MP5K-PDW German Parts Kit Finally after searching all over the country we are able to bring you the rare and ultra-desirable MP5K-PDW parts kit. In good to like new condition with a factory marked HK folding stock and the ultra...HKP-20640$7,199.95 -
Out Of Stock
HK SL8 Barrel - 5.56 / .223 - 20.8" - Used - Complete Assembly
H&K Heckler & Koch
$449.95Factory HK SL8 Barrel, 20.8" used, like new HK German Sl8 barrel with barrel nut, gas block installed. HK SL8-1 HK SL8-6 Rare and hard to find.HKP-20316$449.95 -
HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug
USA
$299.95USA MP5K-PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN-PDW 10mm barrel is a rare barrel. Ideal for enhancing your MP5K-PDW, this barrel combines precision threading with the versatility of a 3-lug mount. Specifications: Made In The...HKP-02317$299.95 -
HK SL8 Adjustable Buttstock Piece - Gray
H&K Heckler & Koch
$29.95HK SL8 Adjustable Buttstock Piece - Gray Genuine HK adjustable buttstock insert.HKP-16995$29.95 -
Out Of Stock
HK SL8, G36 Match Hammer
H&K Heckler & Koch
$0.00German HK SL8 & G36 Match Hammer A hard to find factory HK SL8 & G36 match hammer. Finally after years of searching the G36 match hammer is available. Compatible With: HK SL8-6, SL8-1, Sl8-4 G36, G36K, G36C All G36 & HK243 modelsHKP-17721$0.00 -
HK VP9SK Grip Panel Right Side - Medium - Gray
H&K Heckler & Koch
$16.95H&K VP9SK Right Side Grip Panel - Medium - Gray New HK German manufactured. Right side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18923$16.95 -
HK MP5K Pistol Stabilizing Brace - SBA4 - Adapter Included - OD Green
SB Tactical
$294.95SB Tactical HK MP5K SBA4 Pistol Stabilizing Brace & Adapter - OD Green MP5K, SBA4 5-position adjustable brace features an integral ambidextrous QD sling socket for a quick install and removal sling attachment. This brace is the perfect addition...HKP-20354$294.95 -
HK MP5 Trigger Housing - 4 Position S,E,3F,F - Push Pin - 9mm - USED RARE
H&K Heckler & Koch
$199.99H&K MP5 9mm 4 Position (S,E,3F,F) Trigger Housing - Push Pin - USED RARE Discover a rare find with this HK MP5 ambidextrous push pin trigger housing marked S, E, 3F, F (Safe, Semi, 3 Round Burst, Full). This used but well-preserved housing is a...HKP-20009$199.99 -
HK MR762 Hammer Complete
H&K Heckler & Koch
$179.95H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762HKP-16614$179.95 -
HK MP7A1 Holster Rig - Thigh LH - Gray
H&K Heckler & Koch
$299.95H&K HK MP7A1 Left Thigh Rig Holster - Gray New HK MP7A1 German made thigh Rig Holster. This is the finest most widely accepted holster for the MP7 available & in use by Special Forces & Elite Units Worldwide. This is the factory correct...HKP-16733$299.95