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 MP5 Magazine Follower - .40 S&W, 10mm
H&K Heckler & Koch
$19.95H&K Heckler and Koch Magazine Follower HK MP5 40,10 A perfect replacement part for all HK MP5 40,10 magazines.HKP-01635$19.95 -
HK MP5 Trigger Housing - SEF Navy Style - .40 S&W, 10mm
H&K Heckler & Koch
$99.95 - $179.95H&K MP5 40/10 SEF Navy Style Trigger Housing A perfect upgrade for your HK MP5 40/10 build. This is the only SEF-style housing available for the MP5 40/10 family of firearms. Each housing is professionally clipped and pinned and set up for the...HKP-00445$99.95 - $179.95 -
On Sale
HK MP5 Barrel Extension and Faux Suppressor - 3 Lug - .40 S&W, 10mm
HKP HK Parts
Now: $55.95Was: $69.95HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug This fake suppressor is used as a barrel extension to bring your H&K MP5 40/10 8.85" barrel to legal conforming standards of 16" so you do not have to register the weapon as an SBR. This fits...HKP-00889Now: $55.95Was: $69.95 -
HK MP5K, SP89, SP5K End Cap, Incomplete - 9mm
H&K Heckler & Koch
$54.95HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap. Compatible With: MP5K SP89 SP5K MP5K-N MP5K-PDW MP5K clones or other custom buildsHKP-18208$54.95 -
Out Of Stock
HK MP5 Trigger Housing - Burst 3 Position 0,1,3 Pictogram - Push Pin Style - USED
H&K Heckler & Koch
$199.95H&K 3 Position (0,1,3 Pictogram) Burst Trigger Housing - Push Pin Featuring the 3 Position pictogram (0,1,3), this housing is crafted from durable black polymer. This ambidextrous housing is push pin for a secure fit on semi-auto receiver shelves...HKP-02697$199.95 -
HK MP5 Parts Kit - A2 Buttstock and FBI Lower - 9mm - 100% German
H&K Heckler & Koch
$1,889.95HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm (Minus Receiver) All MP5 Kits: 100% German Parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Two small and one...HKP-01911$1,889.95 -
Out Of Stock
HK Trigger Pack - Ambi Burst 4 Position 0,1,2,F
H&K Heckler & Koch
$0.00Heckler and Koch 4 Position Ambidextrous 0,1,2,F Burst Trigger Pack New HK German 4 position burst trigger pack complete available in your choice of 9mm, 40/10, .223 & .308. We can set up each trigger pack in any caliber you wish (please specify when...HKP-00149$0.00 -
On Sale
HK MP5, SP5, MP5K, SP5K Cocking Handle - Skeletonized
HKP HK Parts
Now: $38.95Was: $48.95HKP HK MP5, MP5K Skeletonized Cocking Handle HKP skeletonized cocking handle for HK MP5 and MP5K pattern firearms. The knurled profile provides increased surface area for improved charging control. Machined from steel billet and salt-bath...HKP-22865Now: $38.95Was: $48.95 -
On Sale
HK MP5, SP5 Handguard - Slimline Style
HKP HK Parts
Now: $17.95Was: $22.95HKP MP5, SP5 Slimline Handguard Once a rare find after HK discontinued it, the classic slimline handguard returns with a fresh, U.S-made update. Specially engineered for the MP5, SP5, and compatible clones, this new version features a reimagined pattern...HKP-21471Now: $17.95Was: $22.95 -
On Sale
HK MP5K, AP5-P End Cap - Incomplete - BLEMISHED
MKE
Now: $19.95Was: $27.95MKE MP5K, AP5-P Incomplete End Cap - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. MKE manufactured end cap for AP5-P and HK MP5K pattern firearms...HKP-99397Now: $19.95Was: $27.95 -
On Sale
HK G36, G36C, G36K Magwell - FDE - BLEMISHED
HKP HK Parts
Now: $28.95Was: $39.95HK G36, G36C, G36K Magwell - FDE - BLEMISHED SHADE OF COLOR MAY VARY COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Allows use of all factory G36 and Magpul G36...HKP-19300-FDE-BNow: $28.95Was: $39.95 -
On Sale
HK MP5K, AP5-P Housing - Contoured - 0, 1
MKE
$135.95 - $161.95MKE Contoured 0, 1 Housing for HK MP5K and MKE AP5-P This contoured 0, 1 (safe/fire) trigger housing is for HK MP5K-pattern firearms and is manufactured in Turkey. Compatible With: MP5K MKE AP5-P, AP5-M In-spec clones and custom buildsHKP-22468-M$135.95 - $161.95