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 MP5SD, MP5K Locking Piece - 115 Degree - .40 S&W, 10mm
RCM
Now: $28.66Was: $44.95RCM HK MP5 & MP5K 40/10 SD 115 Degree Locking Piece Compatible With: MP5/K 10 MP5/K 40HKP-21525Now: $28.66Was: $44.95 -
On Sale
HK P7M10 Magazine Follower Insert - .40 S&W - USED - BLEMISHED
H&K Heckler & Koch
Now: $14.96Was: $34.95H&K HK P7M10 .40 S&W Magazine Follower Insert - USED - BLEMISHED USED. COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES...HKP-01364-BNow: $14.96Was: $34.95 -
On Sale
HK G3 - FMP Early Type Demilled Front End
FMP HK CONTRACT
Now: $63.72Was: $99.95HK G3 - FMP Early Type Demilled Front End Early style G3 front end with no hanger. These are the perfect option for those doing custom builds. Good condition over all. Includes: Cocking tube<HKP-20845Now: $63.72Was: $99.95 -
HK USC, UMP Stock Block C Eyelet with Thumb Screw
HDPS
$169.95HDPS HK USC, UMP Stock Block C Eyelet / Thumb Screw Great option since factory HK UMP stocks are hard to find and expensive. The HDPS HK USC/UMP stock block "C." Each unit comes with eyelet / thumb...HKP-20688$169.95 -
Out Of Stock
R3D Night Sights - Orange
XS Sights
$112.95XS Sight Systems R3D Night Sights - Orange R3D Night Sights feature traditional 3-dot tritium, notch and post, sight picture. The tritium front sight comes equipped with our proprietary...HKP-19935$112.95 -
Out Of StockOn Sale
HK416, MR556 Rail System - 13.75" - M-LOK, Picatinny
KDG Kinetic Development Group
Now: $194.96Was: $399.95Rail System - 13.75" - M-LOK - HK MR556 The New KDG HK 556 M-LOK rails are direct mount rail system, replacing the factory HK 556 rail systems. These new rails are identical in design to their big...HKP-19244Now: $194.96Was: $399.95 -
On Sale
HK33 Cocking Tube - 11" - Left Hand
HKP HK Parts
Now: $63.72Was: $99.95HKP HK33 11" Left Hand Cocking Tube This is the one and only left handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking...HKP-18892Now: $63.72Was: $99.95 -
Out Of Stock
B&T TP9 Barrel - 9mm - 130mm
B&T Brugger & Thomet
$449.95Swiss B&T manufactured 130mm TP9 9mm Barrel Assembly Factory B&T replacement barrel for the TP9. Made in Switzerland. Compatible With: B&T TP9HKP-17305$449.95 -
On Sale
HK VP40 Holster - MTAC
Comp-Tac
Now: $35.96Was: $94.95Comp-Tac HK VP40 MTAC Holster The MTAC is an inside the waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster offers...HKP-17466-MNow: $35.96Was: $94.95 -
HK MP5K, SP5K Slimline Handguard - OD Green - Refinished
H&K Heckler & Koch
$39.95Refinished HK MP5K Slimline Forearm - OD Green Refinished German military OD green slimline forearm with heat shield, modified to fit the MP5K. Available exclusively at HK Parts.HKP-20498$39.95 -
On Sale
HK P30SK Grip Wrap for Medium Backstraps - Rubber
Talon Grip
Now: $18.00Was: $19.99TALON Rubber Grip for HK P30SK Medium Backstrap Adhesive grip overlay designed for the HK P30SK pistol configured with the medium backstrap. This rubber-textured grip provides enhanced control and...HKP-20237Now: $18.00Was: $19.99 -
On Sale
HK P30SK Grip Wrap for Large Backstraps - Granulate
Talon Grip
Now: $18.00Was: $19.99TALON Grip - H&K P30SK - Granulate Black - Large Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence...HKP-20236Now: $18.00Was: $19.99