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 Bolt Hold Open Axle Rod - .40 S&W / 10mm, .357 SIG
H&K Heckler & Koch
$129.95Heckler and Koch HK MP5 Bolt Hold Open Axle Rod - 10mm, .40 S&W, .357 SIG This is the German HK MP5 40/10 bold hold open axle rod. Each unit has the 2 pre-drilled holes for activation screw and clamping sleeve. German HK manufacture. Compatible...HKP-01469$129.95 -
On Sale
HK MP5K, SP89 9mm 4 Position Burst Trigger Group - Push Pin - Complete
H&K Heckler & Koch
Now: $2,789.95Was: $3,099.95H&K MP5K/SP89 9mm 4 Position Complete Trigger Group - Push Pin Each trigger group is brand new and factory fresh, direct from HK, specifically designed for push pin style factory full-autos. They are compatible with MP5K, MP5K-N, and MP5K-PDW models...HKP-01498Now: $2,789.95Was: $3,099.95 -
Out Of Stock
HK MP5 9mm Trigger Group FBI (0,1) Ambidextrous
H&K Heckler & Koch
$0.00HK MP5 Push Pin 0,1 Trigger Group - GermanHKP-01731$0.00 -
HK MP5F Parts Kit - 3 Pos Navy Trigger - A2 Stock
H&K Heckler & Koch
$2,695.95HK MP5F Parts Kit - 3 Pos Navy Trigger - A2 Stock This kit is built from original German components and includes the upgraded full-auto MP5F bolt group assembly and cold hammer forged 3-lug barrel. The MP5F configuration is known for its reinforced...HKP-01538$2,695.95 -
HK MP5 9mm Parts Kit 100% German - A3 Stock - SEF Lower
H&K Heckler & Koch
$2,799.95MP5 Parts Kit - 9mm HK German MP5 9mm Used Parts Kit Complete (Minus Receiver). All MP5 Kits Include: HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto 2 small and 1 large Push...HKP-00770$2,799.95 -
On Sale
Fero Z-51 Night Vision Scope - Parts Grade
Zeiss / Eltro
Now: $397.95Was: $499.95Zeiss/Eltro Fero Z-51 Night Vision Scope-Parts Grade Used in non-working condition -SOLD AS IS. Comes shipped in the original German Army transportation case. Good for spare parts, props, etc. These are the last remaining units available. Some parts may...HKP-15655Now: $397.95Was: $499.95 -
Shotgun Cleaning Kit
H&K Heckler & Koch
$49.95New Factory HK 12GA Shotgun Cleaning Kit This is the factory HK-approved and authorized cleaning kit. No longer available from HK. Each Cleaning Kit Comes With: Saf-T-Clad Cleaning Rod Accessory Adapter Section (#8-32) Patch Holder...HKP-02105$49.95 -
On Sale
HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED
H&K Heckler & Koch
Now: $199.95Was: $359.95Heckler and Koch HK MP5K, SP89 Trigger Housing - SEF - Push Pin - USED VARYING DONDITION SHOWN - SOLD INDIVIDUALLY USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Upgrade your HK MP5K or SP89 with this SEF...HKP-16551-USEDNow: $199.95Was: $359.95 -
On Sale
HK MP5, 90 Series, AP5 Sear - Friction - SEF and Navy Trigger Packs
MKE
Now: $4.95Was: $8.95MKE AP5, MP5, 90 Series Friction Sear for SEF and Navy Trigger Packs Steel friction sear manufactured in Turkey for HK 90 Series trigger packs. Designed for use in SEF and Navy-style configurations, this component is commonly referred to as the catch...HKP-22521Now: $4.95Was: $8.95 -
UMP, USC Front Sight - Omega
OMEGA
$9.95Omega UMP And USC Front Sight Front sight for HK UMP and HK USC Compatible With: HK UMP HK USCHKP-22513$9.95 -
On Sale
HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED
Special Weapons
Now: $139.95Was: $319.95HK SL8 to G36 Conversion Kit - Incomplete - BLEMISHED VARYING CONDITION SHOWN - SOLD INVDIVIDUALLY DOES NOT INCLUDE STOCK OR AR-STYLE MAGAZINE ADAPTER. Will REQUIRE ADDITIONAL MACHINING TO THE STOCK: HINGE, BUTTON LOCKING SECTION, AND INDEX PLATE HOLE...HKP-99394Now: $139.95Was: $319.95 -
On Sale
HK SL8 Stock Cheek Riser Piece - BLEMISHED
H&K Heckler & Koch
Now: $17.95Was: $34.95HK SL8 Stock Cheek Riser Piece - BLEMISHED VARYING CONDITION SHOWN - SOLD INDIVIDUALLY MISSING SPACER COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...HKP-01701-BNow: $17.95Was: $34.95