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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HKP .40 S&W Vented Micro Comp - Threaded 14.5x1 LH
HKP HK Parts
$29.95HKP .40 S&W Vented Micro Comp - Threaded 14.5x1 LH The HK Parts Micro Comp & Thread Protector is designed to be lightweight, and 100% functional as both a compensator and thread protector. The HK...HKP-19955$29.95 -
HK45, HK45 Compact USP Detent Compression Spring
H&K Heckler & Koch
$5.95HK Slide Detent Compression Spring For All HK USP & HK45, HK45C Models The detent spring is needed for positive de-cocking and safety functions of the detent plate. A spare and replacement part as it...HKP-01257$5.95 -
HK VP9, P30 Magazine - 22 Round - Enhanced - 9mm -
HKP HK Parts / Heckler & Koch
$89.9522 Round Magazine Complete - 9mm - HK PARTS - HK VP9, HK P30, P30L HK Parts VP9 & P30 enhanced 22 round magazine. The added grooves enhance dexterity during those quick mag swaps. Designed with...HKP-21405-M$89.95 -
On Sale
HK91, G3, PTR Trunnion
RCM
Now: $63.71Was: $74.95RCM Trunnion For The HK91/G3 Series - US Made This part is machined from ordnance grade 9310 enhanced steel and heat treated to exact HK specifications. This item is the best USA-made trunnion on the...HKP-01289Now: $63.71Was: $74.95 -
HK91, G3 Rear Sight Drum
H&K Heckler & Koch
$9.95HK German Rear Sight Drum .308/7.62 - New Compatible With: HK G3, 91, PTR91, PTR32 HK .308/7.62 models or clones Other HK 308 clones & variantsHKP-01660$9.95 -
Out Of Stock
HK91, G3 Optic Mount - 220mm - Low Profile - Extended Picatinny Rail
B&T Brugger & Thomet
$199.95B&T Mounting Rail Low Profile Mount for HK G3, Long Extended Version Low profile rail that allows the use of iron sights while installed. Specifications: Color: BlackHKP-16873$199.95 -
On Sale
HK MP5KSD, SP89 Barrel Shroud - Enhanced
HKP HK Parts
Now: $76.47Was: $119.95HK Parts MP5K SD Barrel Shroud For SP89 and MP5K Conversion Our MP5K SD shroud is a the best option for those who want to build a custom MP5K SD model. Made in the USA.HKP-00849Now: $76.47Was: $119.95 -
HK MP5K, SP5K, SP89 Handguard with Handstop
H&K Heckler & Koch
$57.95HK SP5K Handguard Factory over-the-muzzle forearm for the MP5K platform. Compatible With: HK MP5K, SP5K, SP89 In spec. clones and cuHKP-18063$57.95 -
On Sale
HK MP5 Optic Mount - Raised - Picatinny
HKP HK Parts
$86.03 - $134.95HKP HK MP5 Raised Picatinny Optic Mount The HKP raised Picatinny optic mount was engineered for maximum versatility. Unlike other optic mounts with an absolute or lower third cowitness, our mount...HKP-21819-M$86.03 - $134.95 -
On Sale
Century Arms AP5-M, AP5-P Sling - Complete
MKE
Now: $18.71Was: $34.99MKE AP5-P Sling Complete Factory-original sling designed for Century Arms AP5-M and AP5-P pistols. Will work with HK SP5 or SP5k and any other in-spec pistol with sling hook attachment points...HKP-21186Now: $18.71Was: $34.99 -
On Sale
HK UMP, B&T APC Folding Brace
SB Tactical
Now: $63.97Was: $79.95SB Tactical Folding Brace for HK UMP, Omega, and B&T APC SB tactical folding brace for the HK UMP, Omega UMP, and B&T APC platforms. Compatible With:HKP-18258Now: $63.97Was: $79.95 -
HK91, G3 Trigger Pack, Complete - SEF Full Auto - Used Surplus
H&K Heckler & Koch
$299.95Heckler and Koch SEF Complete Full Auto Trigger Pack - USED for HK G3 and HK91 7.62x51 / .308 A Heckler and Koch genuine part. The best price anywhere for a complete surplus German trigger pack. This...HKP-00522$299.95