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 SP5 Trigger Housing - Navy 4 Position 0,1,3,F Pictogram - 9mm - Clipped and Pinned
H&K Heckler & Koch
$425.95H&K Heckler and Koch SP5 9mm 4 Position 0,1,3,F Pictogram Navy Style Trigger Housing - Clipped and Pinned The navy style trigger housing is the perfect addition to your HK SP5 9mm firearm. Designed for easy drop in installation, this housing...HKP-19231$425.95 -
HK VP9, P30, HK45 Factory Rear Sight
H&K Heckler & Koch
$59.95HK Factory Rear Sight Compatible With: VP9, VP9SK, VP40 (Excludes OR Slides) HK45 HK45 Compact HK P30 9mm HK P30 40 HK P30L 9mm HK P30L 40 Please Note: Will not fit VP9 Optic Ready (OR) series of pistols.HKP-02161$59.95 -
Out Of StockOn Sale
HK USP, USP Tactical Barrel - 9mm - 4.86" - Threaded 13.5x1 LH
RCM
Now: $180.00Was: $225.00RCM HK USP 9mm Tactical Barrel - Threaded 13.5x1 LH Each barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra-desirable nitride finish. This is the finest replacement barrel available...HKP-16706Now: $180.00Was: $225.00 -
HK USP Compact Right to Left Handed Control Lever V2, V6, V10
H&K Heckler & Koch
$39.95For Variant 2, 6, And 10 - Right Side Selector Lever For Left Handed Shooter The lever you need to swap right to left-handed Compatible With: HK USP Compact 9mm HK USP Compact .40 Cal / .357 Sig HK USP Compact .45 Cal HK USPC...HKP-01434$39.95 -
Out Of Stock
HK G36, SL8 Bolt Catch
H&K Heckler & Koch
$24.95HK G36 & SL8 Bolt Catch On AR-15 systems this part would be similar to a cam pin. Compatible With: G36 G36K G36C SL8 variantsHKP-02472$24.95 -
HK33, HK53, HK93 Bolt Head, Complete
RCM
$214.95HK 93, 33, 53 .223/5.56 Bolt Head Complete - US The latest generation style bolt head with oval shaped roller retainer plate. Perfect for 556/ .223 & 300 BLK HK or roller lock firearms. Includes: 223/556 Extractor- US Extractor Spring- HK 8mm...HKP-16722$214.95 -
HK MP5K, SP89, SP5K Cocking Tube Support - 9mm
HKP HK Parts
$49.95MP5K, SP89 & SP5K Cocking Tube Support Complete - USA The cocking tube support is the same for the HK SP-89, MP5K & SP5K. Each support is complete with detent and spring installed. These can also be used to replace the plastic or cheaply made...HKP-18103$49.95 -
HK MP5 Parts Kit - Pistol Build - Receiver Flat and Weldment Set - 9mm
HKP HK Parts
$1,699.95MP5 9mm Pistol Build Kit Complete German & USA Made Parts MP5 9mm parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance parts to be legal as a pistol (N/A) rifle, or SBR...HKP-18039$1,699.95 -
On Sale
KCI Glock 17/19 Dual Magazine Pouch
Now: $8.95Was: $34.95KCI Glock 17/19 Dual Magazine Pouch Perfect for keeping 2 double stack Glock mags within reach. Factory Glock double stack 15 and 17 round double stack magazines pictured for reference.HKP-21475Now: $8.95Was: $34.95 -
HKP Icon Patch
HKP HK Parts
$5.99HKP Black and Red Lasercut Patch Get your hands on some of our premium new patches! Features: Velcro Back Official HKP MerchandiseHKP-21296$5.99 -
HK MP5K, SP5K, SP89 Side Folding Brace Adapter
HKP HK Parts
$119.95HKP MP5K/SP5K/SP89 Side Folding Brace Adapter The HK Parts folding brace adapter is the best option to attach the SB tactical Folding brace or any brace that utilizes the same mounting system. Hardware included for a quick and easy installation. QD...HKP-20798-M$119.95 -
HK MP5, SP5 Universal Clipping and Pinning Service
USA
$149.95HK Clip and Pin Service for Universal HK SP5 and HK MP5 At HK Parts we offer our own HK trigger housing clip and pin services. No one does a better job with quicker turn around then we do. We will clip and pin any "push pin" plastic housing to the SP5...HKP-20472$149.95