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 Barrel Extension and Faux Suppressor - 3 Lug - .40 S&W, 10mm
HKP HK Parts
$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-00889$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 -
On Sale
HK MP5K, SP5K, SP89 Trigger Group - 3 Position Semi-Auto - Clipped and Pinned
H&K Heckler & Koch
Now: $1,289.95Was: $1,899.95Heckler and Koch MP5K, SP5K Semi Auto 3 Position Trigger Group - Clipped and Pinned Semi-automatic trigger group configured in a 3-position clipped and pinned housing. Provides the appearance of a factory 3-position configuration while retaining a...HKP-00186Now: $1,289.95Was: $1,899.95 -
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 -
HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28
RCM
$204.95RCM MP5, HK34, HK94 Barrel - 9mm - 12.7"- Threaded 1/2x28 Each barrel is hand-selected from the finest cold hammer forged (CHF) 41V45 steel blanks, expertly profiled and chambered in the desirable 16 flute chamber profile. Finished with a...HKP-17762$204.95 -
ACR Style Folding Stock - Picatinny Mount - Universal
Global Ordnance
$174.95Global Ordnance UFS 1913 Universal Folding Stock The Global Ordnance UFS 1913 Universal Folding Stock is designed for firearms equipped with a 1913 Picatinny rear rail. Built for versatility and strength, it features an anodized aluminum adapter with a...HKP-22542-M$174.95 -
HK G36 2 Position Lower Housing - FDE
HKP HK Parts
$154.95HK G36 (5.56/.223) 2 Position (0,1 Pictogram) Lower Housing This lower housing is available without internals, a unique offering as G36 lowers previously only came as complete trigger groups with both grip and internals. Ideal for SL8 to G36 conversions,...HKP-22510$154.95 -
HK CC9 Magazine Spring - 12 Round
H&K Heckler & Koch
$9.95Heckler and Koch 12-Round Magazine Spring for HK CC9 Genuine 12-round HK CC9 steel magazine spring. Compatible With: HK CC9HKP-22509$9.95 -
HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle
MKE
$32.95MKE Anti Rattle Paddle Magazine Release for HK91, HK G3s and HK33, HK53, HK93 Upgrade your rifle with MKE's anti-rattle style paddle mag release. Compatible With: HK91, G3 HK33, HK53, HK93 PSG1, MSG90 In-spec clones and custom buildsHKP-99348$32.95 -
HK416, MR556, HK417, MR762 Cylindrical Head Screw
H&K Heckler & Koch
$19.95Heckler and Koch Cylindrical Screw for MR762, HK417, MR556, HK416 Factory replacement cylindrical lens-head Allen screw for maintaining or repairing your HK417 and MR556 rifles with original-spec hardware. Compatible With: HK417, MR762 HK416, MR556HKP-22433$19.95