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 MP5, MP5K Telescopic Buttpad
B&T Brugger & Thomet
$190.00B&T HK MP5, MP5K Telescopic Buttpad - Brace Conversion B&T replacement stock buttpad. Also used to convert B&T's telescopic brace to a stock (BT-200601) Compatible With: HK MP5 HK MP5K MAC-5 clones may require custom fitment...HKP-21384$190.00 -
On Sale
HK VP Series Curved Trigger - Red Tab
Lazy Wolf
Now: $113.95Was: $134.95C1 - Curved VP Series Trigger - Lazy Wolf Guns - Red Tab In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9 series trigger is the best trigger ever developed after more...HKP-19700Now: $113.95Was: $134.95 -
On Sale
HK51, PTR PDW Folding Stock - Adjustable
Choate
Now: $191.95Was: $239.95Choate PTR PDW and HK51 Tactical Folding Stock - Adjustable The adjustable length system lets smaller-stature shooters or officers wearing body armor have a weapon that fits their needs. This stock also has spacers to allow the stock to be lengthened by...HKP-14537Now: $191.95Was: $239.95 -
Out Of Stock
HK USPC Tactical Barrel - .40 S&W - 4.28" - Threaded 9/16x24 RH
RCM
$225.00RCM HK USPC .40 S&W Tactical Barrel - Threaded 9/16x24 RH Each USPC .40 S&W tactical barrel is meticulously crafted from ordnance grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement...HKP-16707$225.00 -
On Sale
HK VP9, P30 Compact Paddle Holster
Safariland
$37.95 - $39.95Safariland Compact Paddle Holster for HK VP9 and HK P30 The Safariland 578 GLS HK Pro-fit holster is a multi-purpose holster primarily designed for concealment and comfort. With minor adjustments with the included tool the holster will fit over 100+...HKP-17549-M$37.95 - $39.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95Heckler and Koch HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417HKP-02679$9.95 -
On Sale
HK UMP Gunsmithing Bench Mat
HKP HK Parts
Now: $19.95Was: $24.95HK UMP, USC Bench Mat, Gunsmithing Mat Our HK USC and HK UMP bench mat is the perfect cleaning and repair mat designed specifically for your Heckler and Koch models. Have fun and learn while you work on your favorite HK firearm. The soft top protects...hkp-17617Now: $19.95Was: $24.95 -
On Sale
HK91, G3 M4 Stock, Complete
PTR
Now: $198.95Was: $234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142Now: $198.95Was: $234.95 -
Out Of Stock
HK53, HK51 Handguard - Full Length
H&K Heckler & Koch
$59.95H&K HK53/HK51 Handguard - Full Length H&K German manufactured HK51 and HK53 polymer handguard. This handguard is the proper length to cover the extended portion of the trunnion found on the HK53 and HK51 style of firearms. Compatible...HKP-00468$59.95 -
On Sale
HK MP5 Trigger Pack - 9mm - SEF Style 0,1 - Safe, Semi-Auto
HKP HK Parts
Now: $287.95Was: $359.95HKP/H&K MP5/K 9mm SEF Semi-Auto Complete Trigger Pack We have one of the best HK gunsmiths in the country that can take hand-picked German HK F/A trigger packs and modify them to semi-auto. This is done with the best and most precise machinery and...HKP-00152Now: $287.95Was: $359.95 -
Out Of Stock
HK91, G3, PTR Magazine - 10 Round - Alloy
H&K Heckler & Koch
$37.95H&K HK91, G3, MSG90 10 Round Magazine - Alloy This part counts as 1 US-made part for 922r compliance for HK rifles. Manufactured by HK and converted to ten round capacity in the United States using a US-made floorplate. Compatible With: HK91 HK...HKP-22418$37.95 -
On Sale
HK91, G3 Barrel Flute Cleaning Brush - 7.62x51 / .308
HKP HK Parts
Now: $15.95Was: $19.95HKP Cleaning Brush for HK91 and HK G3 Barrel Flutes 7.62x51 / .308 This brush is a must-have for cleaning the chamber flutes on a HK G3 or HK91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render...HKP-22317Now: $15.95Was: $19.95