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 MP5K Gun Briefcase
H&K Heckler & Koch
$0.00H&K HK MP5K Gun Briefcase Compatible With: MP5K Can be adapted for use with custom builds and other MP5K variantsHKP-19207$0.00 -
Out Of Stock
HK33, HK53, HK93, Z43 A2 Fixed Stock - Green
H&K Heckler & Koch
$0.00HK MKE/Zenith HK93,33,53 & Z43 - Fixed Stock - GreenHKP-17965$0.00 -
Out Of Stock
HK33, HK53, HK93 A2 Fixed Buttstock - Green
H&K Heckler & Koch
$0.00HK Heckler and Koch HK33, HK53, HK93 Fixed Stock - Green This stock will fit all HK .223 rifles and clones that are made to factory spec. Compatible with:HKP-00473$0.00 -
Out Of Stock
HK33, HK53, HK93, HK33K Locking Piece #15 - 65 Degree
H&K Heckler & Koch
$0.00Heckler and Koch #15 Locking Piece for HK33, HK53, HK33K, HK 93 The German HK 65 degree angled locking piece was standard on the early HK53 rifles. This locking piece is also used for some custom HK...HKP-00480$0.00 -
Out Of Stock
HK MP5 Brass Catcher - Top Mount
TBR Tactical Brass Recovery
$219.95TBR HK MP5 Top Mount Brass Catcher for MFI Rails MP5 model for MFI rail equipped guns.HKP-19147$219.95 -
Out Of Stock
HK MP5 Brass Catcher - Top Mount - FDE
TBR Tactical Brass Recovery
$219.95TBR HK MP5 Top Mount Brass Catcher for MFI Rails - FDE MP5 model for MFI rail equipped guns.HKP-19148$219.95 -
On Sale
HK MP5, G3, HK33 Hensoldt Aiming Projector - RARE
H&K Heckler & Koch
Now: $3,591.71Was: $7,999.95H&K Hensoldt 90 Series Aiming Projector Ultra rare Heckler & Koch Hensoldt Aiming Point Projector. Includes the original wooden case with all accessories, including IR lens, lens cleaning brush,...HKP-19119Now: $3,591.71Was: $7,999.95 -
HK MP5 Trigger Group - Navy 2 Position - Semi Only - .40 S&W - Clipped and Pinned
H&K Heckler & Koch
$769.95HK Heckler and Koch .40 S&W 2 Position Navy Semi Clipped and Pinned Trigger Group for HK MP5HKP-01752$769.95 -
Out Of Stock
HK USC, UMP Front Sight
USA
$11.95Front Sight - HK USC, UMP - USA Easy to swap out. Knock out the roll pin, remove, replace, and then re-insert the roll pin. Common wear or breakage part. Compatible With: All models of USCHKP-19124$11.95 -
Out Of Stock
HK G36, SL8 Lower Axle Pin
H&K Heckler & Koch
$0.00G36 & HK SL8 Lower Axle Pin The G36/SL8 (all models) uses the same size axle pin for all of the lower components (3 total). Except for the bolt holding open the device axle. Must insert from the...HKP-00291$0.00 -
Out Of Stock
HK SL8 Buttstock Spacer - Gray
H&K Heckler & Koch
$0.00HK SL8 Stock Spacer HK German SL8 stock spacer. These stackable spacers will allow the user to gain extra length of pull for the desired length on the SL8 factory stock. Spacer fits all SL8 rifles...HKP-18054$0.00 -
HK G36K Piston Rod - Incomplete
H&K Heckler & Koch
$69.95Heckler and Koch Incomplete Piston Rod for HK G36K Constructed from a black finished steel, this incomplete factory original part from HK is made in Germany and designed for HK G36K rifle models...HKP-16345$69.95