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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On Sale
Bore Boss Pull-Through Bore Cleaner - 9mm / .357 / .38
Real Avid
Now: $11.66Was: $12.95Real Avid Bore Boss Pull-Through Bore Cleaner - .357/9mm/.38 From the barrel of innovation comes the ultra-compact Bore Boss, the first-ever self-storing, easy-feeding, clean-pulling, field-ready,...HKP-19400Now: $11.66Was: $12.95 -
HK USP Magazine Follower - 9mm, .40 S&W
H&K Heckler & Koch
$9.95Heckler and Koch HK USP 9mm / 40 S&W Magazine Follower Compatible With: HK USP 9mm HK USP .40HKP-02164-M$9.95 -
HK USP 9mm Incomplete Slide
H&K Heckler & Koch
$436.95H&K HK USP 9mm Incomplete Slide New HK German factory USP 9mm slide incomplete. Date coded & marked with the laser engraved "HK" logo. Compatible With:HKP-17722$436.95 -
HK91, G3 SEF Navy Style Trigger Group HK G3 - Used Excellent
H&K Heckler & Koch
$389.95H&K 91/G3 (7.62x51/.308) Navy Style Trigger Group (SEF) - Used Excellent HK factory German HK G3 & HK 91 Full Auto Trigger Group Complete. Pulled from German military HK G3 rifles. These work great...HKP-18670$389.95 -
Out Of Stock
Trigger Housing Long Axle Selector Lever - SEF, 0,1 - Polymer - Extended
H&K Heckler & Koch
$74.95HK German SEF Extended Axle Selector Lever For Polymer Housings - Extended The HK Extended SEF Long Axle Selector Lever is designed for use with polymer SEF-type grips or trigger housings. This...HKP-19027$74.95 -
HK MP7A1, MP7A2 Front and Rear Sight Set - Picatinny - Iron
H&K Heckler & Koch
$529.95H&K HK Parts MP7A1, MP7A2 Flip Front & Rear Sight Set Includes front and rear iron sights, which allows the shooter to see the target and enables faster sight acquisition. This sight set is...HKP-00024$529.95 -
On Sale
HK45C Railok™ Compensator
HKP HK Parts
Now: $97.46Was: $189.95HK Parts Railok™ Mounting System Compensator: H&K HK45C The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function. Users will immediately notice the reduction...HKP-21224Now: $97.46Was: $189.95 -
On Sale
HK UMP Barrel - .45 ACP - 3 Lug Adapter
OMEGA
Now: $258.71Was: $449.95Omega HK UMP .45 ACP Barrel - 3-Lug This is the newest barrel for the UMP to hit the market that will come with a removable 3-lug adapter. The 3-lug adapter will be the same spec as the MP5 3 lug,...HKP-21070Now: $258.71Was: $449.95 -
On Sale
Side Folding Bar for Tailhook Brace
MI Midwest Industries
Now: $116.96Was: $129.95MI Pistol Brace Compatible Side Folder For use with Gear Head Works Tailhook Pistol BraceHKP-19959Now: $116.96Was: $129.95 -
On Sale
Micro Comp - Threaded 14.5x1 LH - .40 S&W
HKP HK Parts
Now: $11.96Was: $29.95HKP .40 S&W Micro Comp - Threaded 14.5x1 LH The HK Parts Micro Comp & Thread Protector is a lightweight, dual-function device serving as both a compensator and thread protector. It attaches easily to...HKP-19954Now: $11.96Was: $29.95 -
On Sale
HK Single Point Sling - Quick Detach - Tan
NcSTAR
Now: $26.96Was: $29.95HKP Single Point Sling in Tan - Quick Detach Specifications: Style: bungee-type design for positive retention and control Connection: HK sling hook attachment point with elastic coverHKP-19766Now: $26.96Was: $29.95 -
On Sale
HK VP9, VP9SK, VP40 Enhanced Support Sleeve - Green
HKP HK Parts
Now: $7.75Was: $14.96Enhanced Support Sleeve VP9, VP9SK & VP40 - Aluminum Alloy - Green A must-have upgrade part for the VP series of pistols! The support sleeve is found in the VP slide and is the part that depresses to...HKP-19631Now: $7.75Was: $14.96