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 Spring - Bent Elbow with Roller - Semi - Trigger, Sear Pack
H&K Heckler & Koch
$29.95H&K Heckler and Koch Semi Trigger Pack Or Sear Pack Elbow Spring W/ Roller Each spring is a great replacement for the converted packs that have bent elbow springs or for those that used the original F/A elbow springs that were bent to shape and are...HKP-00070$29.95 -
On Sale
Sig Sauer P320C Compensator
HKP HK Parts
Now: $99.95Was: $189.95HKP SIG P320C Compensator Our P320 P320C compensator reduces recoil and muzzle flip. Each unit is 100% US-made and finished in durable black cerakote. Our P320C compensator features a Picatinny rail to mount lights/lasers. Available exclusively at...HKP-21092Now: $99.95Was: $189.95 -
HK Soft Case 42" Single Rifle Case - Black
H&K Heckler & Koch
$129.95H&K Soft Case 42" Single Rifle Case - Black Protects 42" rifles and shorter with dense padding and durable water resistant PET shell material. Velcro wraparound handle to combine carrying handles. Large zippered storage compartment. Compatible...HKP-20228$129.95 -
On Sale
HK Lower Housing Clipping and Pinning Service - Polymer
HKP HK Parts
Now: $79.95Was: $99.95HK Clipped & Pinned Service - For Polymer Grip Frames We will clip and pin any "push pin" plastic housing for $99.95 each plus return shipping via USPS priority mail. Our technicians can perform the service on a customer supplied grip or we can clip...HKP-00923Now: $79.95Was: $99.95 -
On Sale
HK MP5, MP5K Optic Mount - Raised - Picatinny
HKP HK Parts
Now: $131.95Was: $164.95HKP HK MP5/MP5K Raised Universal Optic Mount The HKP Raised Picatinny Optic Mount is designed for maximum versatility, providing a true universal mounting solution for red dot optics. Our optic mount utilizes the same footprint as the VP9 Optic...HKP-22219-MNow: $131.95Was: $164.95 -
Out Of Stock
HK33, HK53, HK93 Ejector Lever - Factory Correct
H&K Heckler & Koch
$69.95HK German Factory 93, 33, 33K, 53 & 300 Blackout Ejector Lever New 2nd generation latest design upgraded German factory correct ejector lever. This is the latest design with all the improvements for use in all the various models and styles of 556/223...HKP-00191$69.95 -
Out Of Stock
HK MP5K, SP89, SP5K 9mm Shoulder Harness - Right Handed
H&K Heckler & Koch
$299.95HK MP5K, SP89 & SP5K Shoulder Rig - Right Hand HK MP5K, SP5K shoulder harness with 2X spare magazine pouch. This is the finest shoulder harness available and is the one used by the Secret Service and other operators when discretely carrying the HK...HKP-01295$299.95 -
On Sale
Tin Case with Flares - 26.5MM
Other
Now: $699.95Was: $899.95Tin Case with Flares - 26.5MM Sealed tin with 14 10-packs of flares for a total of 140 flares per tin. Each 10-pack of Polish military flares include 2 of each of the following: White Fire, Red Fire, Green Fire, Blue Smoke, and Red...HKP-20794Now: $699.95Was: $899.95 -
HK91, G3 Rear Sight Drum
H&K Heckler & Koch
$9.95HK German Rear Sight Drum .308/7.62 - New Compatible With: HK G3, 91, PTR91, PTR32 HK .308/7.62 models or clones Other HK 308 clones & variantsHKP-01660$9.95 -
HK33, HK93, HK91, G3 Triple Frame Front Sight Tower - Sight Blade
H&K Heckler & Koch
$14.95HK German Front Sight Tower Triple Frame- Used Surplus Used G3 triple frame in Good shape. Just needs a good refinishing. Comes complete with sight blade and roll pin installed. Used surplus pulled from HK German demilled G3's Comaptible With: HK 91 HK...HKP-16734$14.95 -
On Sale
HK UMP, USC Barrel - Flanged - .45 ACP - 8"
HDPS
Now: $296.95Was: $329.95HDPS HK UMP 45 ACP 8 Inch Barrel - Flanged HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. Each barrel is an exact reproduction with all HK German specs. As a bonus, this item counts as 1 of the 3...HKP-02130Now: $296.95Was: $329.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 15 Round - 9mm - Cerakote
H&K Heckler & Koch
$99.95Heckler and Koch German 15 Round Cerakote Magazine for HK MP5, MP5K, SP5, SP5K Brand new factory fresh German HK 15 round curved magazine. Perfect for those in need of a lower capacity magazine for a more comfortable prone position...HKP-21383-M$99.95