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 MP5 Cocking Tube - 9mm
H&K Heckler & Koch
$109.95H&K MP5 9mm Cocking Tube New factory German HK uninstalled part directly from HK Germany. Rare and hard to find. Compatible With:HKP-00093$109.95 -
On Sale
HK MP5 Tri-Rail Handguard - TL-99A1
B&T Brugger & Thomet
Now: $211.46Was: $234.95B&T Brugger and Thomet TL-99A1 Tri-Rail Handguard for HK MP5 This handguard for the MP5 has a total of three NAR-Picatinny Rails; one on each side and one on the bottom.HKP-16904Now: $211.46Was: $234.95 -
HK MP5, HK91, G3, HK33 Cocking Tube Detent End Cap
H&K Heckler & Koch
$4.95HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.HKP-18050$4.95 -
On Sale
Picatinny Optic Mount - 30mm Barrel Mount - Dual Rail
HKP HK Parts
Now: $3.71Was: $14.9530mm Barrel Mount, Dual Picatinny Rail Universal barrel mounted dual Picatinny for mounting accessories directly to barrels with a 30mm O.D. Features: Mounts directly to the barreHKP-16674Now: $3.71Was: $14.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Selector Lever - Ambi - Left
H&K Heckler & Koch
$11.95Heckler & Koch HK416 Ambi Safety Selector Lever Factory HK polymer left side selector lever.HKP-22310$11.95 -
On Sale
HK P30 MOD 1 Compensator
HKP HK Parts
Now: $143.96Was: $179.95HKP HK P30 MOD 1 Compensator The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on...HKP-22163Now: $143.96Was: $179.95 -
On Sale
Suppressor Cleaner Evolution - 500ml
SchleTek
Now: $34.21Was: $38.00SchleTek Suppressor Cleaner Evolution 500ml A highly effective, easy-to-use cleaner for all suppressor types. Its self-active formula tackles stubborn fouling quickly, eliminating laborous cleaning...HKP-21715Now: $34.21Was: $38.00 -
On Sale
HK MP5 Dual Magazine Clamp - 10mm, .40 S&W
HKP HK Parts
$31.84 - $49.95HKP HK MP5 40/10 Dual Magazine Clamp The HK Parts MP5 40/10 dual magazine clamp is expertly crafted to fit all 40/10 MP5 polymer magazines. Constructed from durable aluminum and finished with a type...HKP-21614-M$31.84 - $49.95 -
On Sale
HK21E, HK23E Rear Sight Base
HKP HK Parts
Now: $24.83Was: $38.95HKP HK Parts Rear Sight Base for HK21E, HK23E US manufactured billeted from solid ordnance grade bar stock. Each unit is precisely machined to factory tolerances. Requires post installation...HKP-21467Now: $24.83Was: $38.95 -
Out Of Stock
HK MP5, MP5K Brass Catcher - QD,QO
B&T Brugger & Thomet
$264.95B&T HK MP5/MP5K QD/QO Brass Catcher Works with HK MP5 only with the BT-21358 handguard or for the BT-21573 handguard for the MP5K.HKP-21315$264.95 -
On Sale
HK VP9 Optic Plate #6 - Sig Romeo 1 - Red Dot Pistol Mount
HKP HK Parts
$19.09 - $25.47HKP HK VP9/L 9mm Sig Romeo Optics Plate #6 The finest lightweight aluminum mounting solution for your HK VP9 OR model. New solid billet machined aluminum optics plate for the Sig Romeo 1 optic. Each...HKP-19704-M$19.09 - $25.47 -
Out Of Stock
HK G36C Buttstock Assembly, Complete
H&K Heckler & Koch
$198.95HK G36C Stock Assembly Complete - German Genuine German Heckler & Koch G36C stock assembly. One full inch shorter than the standard G36 stock. This is the preferred stock for average-height users...HKP-00626$198.95