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 MP5, MP5K Optic Mount - 5 5/8" - MLI - Picatinny Rail - RAL8000
H&K Heckler & Koch
$399.99HK German Low Profile Mount For HK MP5, MP5K- MLI - RAL 8000 HK MP5, MP5K low profile picatinny scope mount. Manufactured in house at HK Germany as part of the "Mid-Life Improvement" upgrade for the MP5 family of firearms. The first Picatinny style low...HKP-17661$399.99 -
HK MP5, MP5K Cartridge Case Deflector, Shell Deflector - Billet
HKP HK Parts
$19.95Cartridge Case Deflector, Shell Deflector - MP5, MP5K - Billet New US made case deflector for receiver flat or receiver for all MP5, HK94, MP5K, & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver...HKP-17574$19.95 -
On Sale
HK45 Railok™ Compensator
HKP HK Parts
Now: $97.46Was: $189.95HK Parts Railok™ Mounting System Compensator: H&K HK45 The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil,...HKP-21113Now: $97.46Was: $189.95 -
HK SP5K Bolt Carrier - Full Auto
RCM
$189.95HK SP5K Specification Full Auto Bolt Carrier - US Made Machined completely from billet ordnance grade steel. The HK SP5K carrier is made to the most updated and latest MP5K F specs that will fit the SP5K. Tungsten filled, heat treated, & factory...HKP-17932$189.95 -
HK SP5K Micro Comp - Knurled - Threaded 1/2x28
HKP HK Parts
$26.95HKP HK SP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 Our SP5 micro comp has the appearance of a standard factory style thread protector but now extended and slotted to provide a micro comp feature. The added slots help mitigate gasses allowing the...HKP-21374$26.95 -
On Sale
HK VP9 Gen 2 V.2 Rail Mount Compensator
HKP HK Parts
Now: $39.35Was: $149.95HKP HK VP9 Gen 2 V.2 Rail Mount Compensator CLEARANCE COMPENSATORS ARE NOT AVAILABLE IN ANY COLORS ASIDE FROM WHAT IS PURCHASABLE ON THE WEBSITE. WE WILL NOT BE RUNNING THESE COMPENSATORS AGAIN SO IF THEY COLOR YOU WANT IS SOLD OUT, WE ARE SORRY...HKP-21141-MNow: $39.35Was: $149.95 -
HK VP9, P30, USPC, P2000 Magazine Follower - 9mm - Blue
HKP HK Parts
$22.46HKP HK VP9, HK P30, HK USPC, HK P2000 9mm Magazine Follower - Blue A great replacement item for the stock follower. Made from aircraft-grade hard coat anodized aluminum CNC machined from a solid billet. Compatible With: HK VP9, VP9SK, VP40 9mm & ...HKP-19668$22.46 -
HK416, MR556 Sling Loop Backplate - Ambidextrous
H&K Heckler & Koch
$34.95H&K HK MR556/416 Sling Loop Backplate - Ambidextrous Genuine HK German manufactured 416, MR556 new style backplate with sling loop. Compatible With: HK MR556, HK 416 buffer tubes All Standard AR-15, M4 & M16 buffer tubesHKP-17151$34.95 -
HK MP5, HK90 Series Buttstock Push Pin - Sling Hook - Ambi
H&K Heckler & Koch
$52.99H&K Ambidextrous Stock Sling Pin - Large The ambidextrous sling hook push pin replaces the stock push pin on the rear stock of the HK firearm, to enable the use of an HK sling for both left and right hand use. This part will replace and work on any...HKP-00078$52.99 -
HK MP5 Trigger Pack - Semi-Auto - 9mm - 922r
HKP HK Parts
$269.95Trigger Pack For MP5, HK94 Variants Such as Zenith, POF- 4 US 922r Compliant Parts HK MP5, HK94 9mm Semi Auto Trigger Pack complete. Each Trigger group incorporates the following US made compliant parts completely assembled & ready to drop in. The...HKP-17878$269.95 -
HK MP5 Tri-Rail Handguard
PTR
$149.95PTR MP5 Tri-Rail Forearm US made and comes with 3 independent 4" removable rails that are fully modular and able to add and remove at will. Made in the USA. Low profile and the most modular of any picatinny style forearm available. The Picatinny Rails...HKP-17782$149.95 -
HK Binary Selector Set - Ambi Housing
HKP HK Parts
$79.95Aluminum HK Selector Lever Set for BFSIII HK Binary Trigger Pack - Ambi pictogram housings Our new Aluminum Selector Lever Set was modeled after the HK Ambi Style Selector Lever. Designed to work flawlessly with Franklin Armory Trigger Pack...HKP-19816$79.95