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 Barrel - 10mm - Threaded 9/16x24 with 3 Lug
RCM
$279.95RCM HK MP5 10mm Barrel - Threaded 9/16x24 Enhance the performance of your MP5 with the RCM HK MP5 10mm Barrel. This barrel is precision engineered for superior accuracy and durability. This barrel features a 9/16x24 thread and includes a thread protector...HKP-21158$279.95 -
SL Magpul Housing Service
Magpul
$49.95 - $129.95SL Magpul Housing Service Our SL Magpul Housing conversion service can be preformed to convert a MP5 style magpul housing into a MP5K style housing. We can also convert them to be compatible with the push pin style receivers like a Factory HK MP5,...HKP-20614-M$49.95 - $129.95 -
HK G36K Handguard - Heat Shield and Handstop - FDE
HKP HK Parts
$109.95HKP HK G36K Forearm With Hand Stop & Heat Shield HK G36K-length forearm, latest production style, with an integrated heat shield. This handguard includes a built-in hand stop, sling attachment points, and molded mounting locations for adding bottom,...HKP-19301$109.95 -
HK VP9, VP40 Back Grip Panel - Large - OD Green
H&K Heckler & Koch
$29.95H&K VP9, VP40 Back Grip Panel - Large - OD Green New HK German manufactured Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 KHKP-19177$29.95 -
HK G36C Piston Rod - Black - Incomplete
H&K Heckler & Koch
$49.95H&K HK G36C Incomplete Gas Piston Rod - Black A must have item for HK G36C conversions from SL8's or for spares for your G36C. New HK German factory part.HKP-17009$49.95 -
B&T TP9, MP9 Firing Pin
B&T Brugger & Thomet
$44.95B&T Firing Pin For B&T TP9, MP9 Genuine Swiss Brugger and Thomet firing pin for the TP9 and MP9 platforms. Compatible With: B&T TP9 B&T MP9HKP-17297$44.95 -
B&T TP9, MP9 Brass Catcher - Quick Detach- Polymer
B&T Brugger & Thomet
$197.95B&T TP9/MP9 Polymer Quick Detach Brass Catcher This is the new style brass catcher that only fits new style TP9 top covers. Specifications: Color: Black Height max: 102.2 mm Length max: 122 mm Material: Polymer Mounting: Weapon must be equipped with...HKP-17286$197.95 -
Out Of Stock
HK VP9SK, VP40SK Backstrap - Medium - FDE
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Backstrap - Medium - FDE New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18581$29.95 -
HK VP9SK Grip Panel Right Side - Medium - OD Green
H&K Heckler & Koch
$19.95H&K VP9SK Right Side Grip Panel - Medium - OD Green New HK German manufactured. Right side medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VPSK pistol. Compatible With: HK VP9SKHKP-18967$19.95 -
Out Of Stock
HK USPC HK08 Night Sight - Green
Trijicon
$142.95Trijicon HK USPC HK08 Night Sight - Green Trijicon Bright & Tough Night Sights are 3 dot iron sights that increase night fire shooting accuracy by as much as five times over conventional sights. Equally impressive, they do so with the same...HKP-01610$142.95 -
Out Of Stock
RMR,SRO Adapter - 45° - Rail Offset
USA
$91.45Trijicon RMR/SRO 45° Rail Offset Adapter Perfect for that situation where you need the versatility of a magnified optic paired with a Trijicon RMR or SRO red dot sight in close quarters. This offset rail adapter attaches to the firearm's picatinny...HKP-20336$91.45 -
HK VP9SK Grip Wrap for Small Backstraps - Granulate
Talon Grip
$19.99TALON Grip - H&K VP9SK - Granulate Black - Small Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...HKP-20261$19.99