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, MP5K Magazine Clamp - Dual - 9mm - Bundle
H&K Heckler & Koch
$299.95HK German MP5, SP5, MP5K, SP5K 9mm Mag Clamp Bundle Allows the user to clamp 2 MP5 9mm magazines together for quick mag changes. Perfect for swapping between different types of ammo and faster mag swaps. Includes: HKP dual-magazine...HKP-20492$299.95 -
On Sale
HK MP5, AP5 Firing Pin Spring
MKE
Now: $3.95Was: $4.88HK MP5, AP5 Firing Pin Spring The MKE firing pin spring is compatible with all MP5, AP5, AP5-P, MP5K, and .40/10 variants, as well as most in-spec clones. The firing pin is one of the most frequently replaced repair items, making this spring an...HKP-22485Now: $3.95Was: $4.88 -
HK91, G3 SEF Navy Style Trigger Housing - Push Pin - USED
H&K Heckler & Koch
$29.95H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Push Pin - USED This grip housing comes in black polymer. Accepts standard SEF or 0,1 style trigger packs & SEF longer axled selector levers. This is truly an affordable upgrade for your...HKP-17354$29.95 -
Out Of Stock
USA HK MP5 9mm Ejector Lever
PTR
$34.95Ejector Lever - HK MP5, 94 & MP5K, SP-89 - 9mm- USA HK 9mm ejector lever. Fits all of the HK 9mm variants, stamped, formed, heat treated, secondary machined & hardened. This USA made ejector is patterned after the latest generation German...HKP-19660$34.95 -
HK USPC, P2000 Magazine Floorplate - 9mm - 13 Round - Pinky Rest - Rubberized
H&K Heckler & Koch
$19.9513 Round USPC & P2000 9mm Magazine Floor Plate w/ Pinky Rest This part is the new style floor plate that is rubberized to resist breakage when the magazine is dropped. Compatible With: HK USPC 9mm 13-round magazines HK P2000 9mm 13-round...HKP-02648$19.95 -
On Sale
HK90 Series Cocking Tube End Cap - Aluminum
HKP HK Parts
Now: $11.95Was: $14.95H&K Cocking Tube End Cap - Aluminum - US Made Made from weight-saving aircraft-grade aluminum alloy. Compatible With: All 90 series HK firearms and clones that use a triple frame/sight towerHKP-02806-MNow: $11.95Was: $14.95 -
On Sale
HK416, MR556, AR-15, M4 Magazine - TMAG - 30 Round
Magpul
Now: $21.95Was: $24.95Magpul AR/M4 30 Round TMAG Magazine The TMAG 30 AR/M4 GEN M3 is a highly reliable, translucent, 30-round magazine for STANAG-compatible weapons chambered in 5.56x45 NATO/.223 Remington. Molded from a durable translucent material with an olive drab hue,...HKP-21149Now: $21.95Was: $24.95 -
On Sale
HK G36 Magazine - 30 Round - Magpul
Magpul
Now: $24.95Was: $27.95Magpul 30 Round HK G36 5.56/.223 Magazine The PMAG 30G Maglevel (5.56 NATO / .223 Remington) is a durable, lightweight, highly reliable 30-round polymer magazine for the HK G36 series of firearms. Including the SL8 conversions that now use G36 magazines...HKP-01740Now: $24.95Was: $27.95 -
HK90 Series Trigger and Catch Axle
H&K Heckler & Koch
$1.99HK Sear & Trigger Axle For 90 Series- Used Surplus Condition HK German used sear and trigger axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .197 inches (5.0mm). A great spare and must have spare part for anyone...HKP-15459$1.99 -
On Sale
HK VP9, P30 Extension Kit - Magazine - 17 Round
HKP HK Parts
Now: $31.95Was: $39.95HK Parts Magazine Extension +5 Capacity for HK 17 Round Magazine - HK VP9, P30, P30L New & improved Gen 2 model! HK Parts Magazine Extension +5 kit adds 5 additional rounds to the HK VP9/P30 17 round magazine with the simple swap of the floor plate...HKP-19296Now: $31.95Was: $39.95 -
HK MP5K, SP89, SP5K Side-Folding Brace - 9mm
SB Tactical
$249.95HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. These are the last remaining units with an aluminum folding adapter as SB tactical has now switched over to a polymer...HKP-18016$249.95 -
Out Of Stock
HK UMP Micro Comp - Threaded .578x28 Right Hand
HKP HK Parts
$29.95HKP .45 ACP Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector is designed to be lightweight, and functional as both a compensator and thread protector. The HK Parts micro comp easily attaches to the end of any factory spec ...HKP-20212$29.95