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, SP5 Replacement Parts Kit
HKP HK Parts / Heckler & Koch
$229.95HK / HKP MP5, SP5 Replacement Parts Kit This kit has the the most commonly worn parts needed to keep your precious MP5/MP5K going. Our German and U.S. spare parts kit has everything you will need to keep feeding rounds down range. Our spare parts kit...HKP-20919$229.95 -
On Sale
HKP 9mm - Micro Comp - Threaded 13.5x1 LH
HKP HK Parts
Now: $39.95Was: $49.95HKP 9mm - Micro Comp - Threaded 13.5x1 LH This precision engineered compensator is designed to enhance your shooting experience by reducing muzzle rise and improving accuracy. It's crafted for seamless installation and reliable performance...HKP-18061Now: $39.95Was: $49.95 -
Out Of Stock
HK USPC, P2000 Magazine Body - 9mm - 13 Round
H&K Heckler & Koch
$27.9513 Round HK USPC & P2000 9mm Magazine Body Each unit comes with the LEO markings on the mag body. Compatible With: USPC 9mm P2000 9mmHKP-02502$27.95 -
HK MR556 Receiver Take Down Tool
H&K Heckler & Koch
$19.95H&K HK MR556 Receiver Take Down Tool This part is the tool used to tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock. Compatible With: HK MR556 Please Note: We get...HKP-02653$19.95 -
On Sale
HK G36, SL8 Recoil Buffer - Factory - US
USA
Now: $12.95Was: $16.95HK G36 Or SL8 Factory Recoil Buffer A must have spare part as the buffer is prone to wear and breakage. Compatible With: All HK G36 models SL8 models ClonesHKP-18541Now: $12.95Was: $16.95 -
On Sale
HK91, G3, HK33, HK53, HK93 Wood Stock Buttpad - Rubber - Enhanced
HKP HK Parts
Now: $23.95Was: $29.95Butt Pad For Wooden Stocks - Enhanced Rubberized Buttpad The enhanced rubberized butt pad is a direct replacement to a standard fixed stock butt pad that can be replaced and upgraded in seconds. This buttpad provides a softer rubberized surface for...HKP-17667Now: $23.95Was: $29.95 -
HK416, MR556, HK417, MR762 Pistol Grip
H&K Heckler & Koch
$89.99HK Heckler and Koch's Pistol Grip with Storage - Black HK German factory pistol grip with a storage compartment in the bottom. It has a superior fit and feel to any other grip on the market. This is a great upgrade for any AR, M16 platform. Compatible...HKP-22298$89.99 -
On Sale
HK UMP, USC Stock Block B - Eyelet Thumb Screw Style
HDPS
Now: $194.95Was: $229.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B- Eyelet Screws New latest production HDPS HK USC/UMP Stock Block type for use with all HK UMP factory or US made Folding Stocks. Each unit comes with the sling loop eyelet and thumbscrews. This is a...HKP-16756Now: $194.95Was: $229.95 -
On Sale
HK53 Cocking Tube
HKP HK Parts
Now: $111.95Was: $139.95HKP 53 (5.56/.223) Cocking Tube New cocking tube made in the US. Made to the exact HK specifications as the factory HK53 German cocking tube. This is the only factory-correct HK53 cocking tube available, as HK Germany does not offer this part separately...HKP-00197Now: $111.95Was: $139.95 -
HK MP5, SP5K Cocking Support Detent
H&K Heckler & Koch
$9.95Cocking Tube Support Detent For The MP5, 94, MP5K, SP89, & SP5KHKP-01103$9.95 -
Out Of Stock
HK SEF Short Axle Selector Lever For Metal Trigger Housings - Extended
HKP HK Parts
$69.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings - Extended HK steel SEF Extended selector lever. Fits all metal HK grip frames. Please note that the polymer (plastic) style SEF housing uses the long axle SEF selector lever and not this...HKP-19026$69.95 -
On Sale
HK MP5 Stock - KES
Safety Harbor Firearms
Now: $251.95Was: $279.95KES HK MP5 Stock The all-new KES is designed to fit the MP5 pattern pistols/rifles. Specifications: Guide rods slide into the existing slots present on the receiver Rods machined to go underneath the reinforcing piece welded onto the rear of the...HKP-21086Now: $251.95Was: $279.95