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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HK33, HK53, HK93, HK91, G3 Paddle Magazine Release - Anti-Rattle
H&K Heckler & Koch
$64.95Heckler and Koch Anti Rattle Paddle Magazine Release This item is a new HK German genuine part not used or surplus for installation on all HK .223 and .308 HK rifles. This is the highly desired anti-rattle-style paddle mag release. Compatible...HKP-01126$64.95 -
On Sale
HK MP5K Grip Frame Housing - 2 Positions S,F Pictogram - Clipped and Pinned - 9mm
PTR
Now: $135.95Was: $159.95PTR HK MP5K 9mm 2 Positions (S,F Pictogram) Grip Frame Housing - Clipped and Pinned This HK aftermarket trigger housing will accept all SEF style trigger packs. This is made by PTR 91 to exact HK specs. This housing comes clipped and ready for a...HKP-16443Now: $135.95Was: $159.95 -
On Sale
HK91, G3, HK33, HK53, HK93 Paddle Magazine Release - Anti-Rattle
MKE
Now: $27.95Was: $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-99348Now: $27.95Was: $32.95 -
HK MR762 A4 Upper Receiver Kit - 13"
H&K Heckler & Koch
$2,499.95HK MR762 A4 Upper Receiver Kit - 13" The MR762 A4 kit contains a complete upper receiver and barrel assembly. The closed system design significantly reduces malfunctions typically associated with direct-impingement gas systems, as hot carbon fouling and...HKP-22399$2,499.95 -
On Sale
HK416, MR556 Flash Hider - 3 Prong - Threaded 1/2x28
B&T Brugger & Thomet
Now: $84.95Was: $100.00Brugger and Thomet Assault 3 Prong Flash Hider - 1/2x28 3-Prong muzzle device with 1/2x28 threading, designed to reduce muzzle flash and improve shooting performance. Features: High performance open tine hybrid Precision machined, DLC...HKP-22216Now: $84.95Was: $100.00 -
HK G36 Magazine - 30 Round - LEO Marked - USED
H&K Heckler & Koch
$195.99H&K G36 (5.56/.223) 30 Round Magazine - LEO Marked - USED CONDITION VARIES BY UNIT - SOLD INDIVIDUALLY HK German 30-round magazine, LEO marked, designed to perfectly fit all G36, G36K, G36C variants, and converted SL8's with the G36 magwell...HKP-22212$195.99 -
HK CC9 Magazine Locking Plate - 10 Round Ext.
H&K Heckler & Koch
$5.95H&K CC9 Magazine Locking Plate - 10 Round Ext. Factory German HK magazine locking plate for use with the HK CC9 +10 round magazine extension. Secures the extended baseplate to the magazine body. Compatible With: HK CC9HKP-22154$5.95 -
HK CC9 Extractor
H&K Heckler & Koch
$19.95H&K CC9 Extractor Replacement extractor for the CC9 pistol. Removes spent casings and functions as a visual and tactile loaded chamber indicator. Compatible With: HK CC9HKP-22129$19.95 -
HK CC9 Recoil Spring Support
H&K Heckler & Koch
$5.95H&K CC9 Recoil Spring Support Genuine H&K, this recoil spring support for the CC9 pistol guides and supports the recoil spring during cycling. Compatible With: HK CC9HKP-22113$5.95 -
HK CC9 Disassembly Lever - Takedown Lever
H&K Heckler & Koch
$19.95H&K CC9 Disassembly Lever Made in Germany, this CC9 disassembly lever allows removal of the slide assembly from the frame for maintenance and cleaning. Compatible With: HK CC9HKP-22105$19.95 -
On Sale
HK MP5K, AP5-P Trigger Group
MKE
Now: $406.95Was: $479.95Century AP5-P, AP5-M Trigger Group This trigger group serves as a direct replacement for AP5-P, AP5-M, Zenith clones, and factory MP5K receivers. For customers needing compatibility with shelfed receivers, we also offer a clip-pin service as an optional...HKP-21668Now: $406.95Was: $479.95 -
Out Of Stock
HK MP5 Folding Stock - MBT
B&T Brugger & Thomet
$650.00B&T Brugger and Thomet MBT Stock for HK MP5 B&T MBT folding stock for HK MP5. Polymer stock and adapter. Features: 8 position length adjustment Telescoping cheek riser with 3 position height adjustment Folds to the right canted downward...HKP-21422$650.00