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
HK Mark 23 Magazine with Extension, Complete - 24 Round
HKP HK Parts
Now: $71.95Was: $89.95HK Parts and Heckler and Koch Complete 24 Round Magazine for Mark 23, SOCOM New HK German MK23 Magazine body combo; pre-installed along with the HK Parts mag extension kit fully installed. Each offering is complete, fully assembled, ready for...HKP-19478Now: $71.95Was: $89.95 -
HK 2 Round HK SLB 2000 30-06 Magazine
H&K Heckler & Koch
$29.95HK SLB 2000 30-06 2 Round MagHKP-16997$29.95 -
HK45 Compact Barrel - .45 ACP - 3.94" - Non-threaded
H&K Heckler & Koch
$234.95HK45C German Barrel Genuine Heckler & Koch HK45 Compact standard length, non-threaded, factory barrel. This is a great item to have as a spare.HKP-01641$234.95 -
HK USP V2, V6, V10 LH Control Lever
H&K Heckler & Koch
$43.95New HK German USP Full Size Control Lever For Variants 2, 6, 10 A common item to convert the USP from a right-handed shooter to a left-handed operation. This is the control lever for the right side of the firearm for left-handed shooters. Compatible...HKP-01415$43.95 -
HK USPC, P2000 Magazine Floorplate - 9mm - 10 Round - Pinky Rest
H&K Heckler & Koch
$24.99H&K 10 Round HK USPC/P2000 9mm Floor Plate w/ Pinky Rest Compatible With: HK USP Compact 9mm HK P2000 9mmHKP-01201$24.99 -
On Sale
HK G36, SL8 Extractor Axle - USA
Now: $5.95Was: $6.95HK G36, SL8 Extractor Axle- US Made New extractor axle for use on all G36, SL8 bolt heads. This part can become heavily worn and is prone to breakage. Compatible With: HK G36 models HK SL8 modelsHKP-18370Now: $5.95Was: $6.95 -
HK91, G3, PTR91 Stock with Enhanced Buffer, Complete
Magpul
$899.95Magpul PRS Stock With Enhanced Buffer The Magpul PRS2 (Precision Rifle Sniper) is a drop-in, precision-adjustable buttstock designed for the HK G3, HK91, PTR91 rifle and its variants. Designed to offer the fine-tuned, customized feel of a precision...HKP-16698$899.95 -
HK91, G3 Bolt Carrier - Full Auto - Tungsten Filled - Surplus
H&K Heckler & Koch
$249.95HK Factory F/A Tungsten Filled Bolt Carrier Used German Surplus The tungsten upgrade is ideal for those with bolt bounce issues or who want the smoothest carrier for FA use. These carriers are all used and in good shape and need to be refinished...HKP-01998$249.95 -
HK91, G3 A2 Fixed Buttstock - Jungle Green - Surplus
H&K Heckler & Koch
$25.95H&K 91/G3 (7.62x51/.308) Fixed Stock - Jungle Green - Surplus Used jungle green German surplus stock complete. Ready to install on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts to be a complete stock ready...HKP-16270$25.95 -
On Sale
HK33, HK93 Locking Piece - 300 BLK
RCM
Now: $41.95Was: $49.95RCM 300 BLK Locking Piece New US manufactured 300 BLK locking piece for custom 300 builds or other custom 300 BLK HK style roller locked firearms. Compatible With: HK 93, HK33HKP-15547Now: $41.95Was: $49.95 -
On Sale
HK MP5, MP5K Rear Sight Base - Billeted
HKP HK Parts
Now: $13.95Was: $17.95HKP HK Parts Billeted Rear Sight Base - Weldment for HK MP5 and HK MP5K All steel HK MP5, MP5K billeted rear sight base. The most correct MP5, MP5K rear sight base available. The only billeted factory correct sight base with the factory HK German side...HKP-18087Now: $13.95Was: $17.95 -
Out Of Stock
Picatinny Handstop
Ergo
$11.95Ergo Picatinny Rail Hand Stop Compatible with all Picatinny rails and adds a positive stop. Useful on short-barrel rifles and shotguns and can act as a hand-positioning device.HKP-14527$11.95