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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Kaw Valley Precision Mach 3 Modular Linear Comp Body
Kaw Valley Precision
$39.95Kaw Valley Precision Mach 3 Modular Linear Comp Body The KVP MACH 3 is a user configurable linear compensator system. 1-1/8"x28 TPI internal threads accommodate common suppressor attachments, such as a SilencerCo 3-lug mount, direct thread mounts,...HKP-19984$39.95 -
HK91, G3 Tactical Grip for Metal Grip Frames
Ergo
$59.95Ergo G3, 91, PTR Tactical Grip For Metal Grip Frames The ergonomically enhanced ERGO Tactical Deluxe Grips are compatible with all metal HK grip frames, both the semi-auto & full auto metal grip frames. Compatible With: HK 91, G3, PTR, CETME, 93,...HKP-14092$59.95 -
HK MP5 Handguard - Tri-Rail
MI Midwest Industries
$169.95MI HK MP5 Tri-Rail Handguard Features: Professional grade one-piece design Tri-Rail 1913 Picatinny on 3 sides for accessory attachment Simple installation includes all tools Extremely lightweight design Features two anti-rotation QD sling swivel...HKP-21485$169.95 -
HK VP9/P30 +3 Magazine Extension
HKP HK Parts
$34.95HKP +3 HK VP9/P30 Magazine Extension HK Parts magazine extension adds 3 additional rounds to the magazine with the simple swap of the floorplate for the extension. This is an easy 2 min swap, no gunsmithing needed. Made in the USA out of hard...HKP-17649-M$34.95 -
On Sale
HK USP, P2000, HK45C Enhanced Magazine Release
HKP HK Parts
Now: $22.46Was: $44.95HKP Enhanced Magazine Release -HK USP, P2000, HK45C HK Parts Enhanced and Over-sized Magazine Release. The over-sized magazine release increases the overall surface area and makes it possible to release the magazine without changing the position of...HKP-21491-MNow: $22.46Was: $44.95 -
B&T Short Style Vertical Foregrip - Picatinny - Black
B&T Brugger & Thomet
$75.00B&T Short Style Vertical Grip - Picatinny - Black B&T Vertical Grip - Short Style- Fixed Swiss made B&T short vertical forend grip. This foregrip is designed to be easily attached to the picatinny rail using the knurled screw. Made of black...HKP-18426$75.00 -
HK UMP 9mm 30 Round Magazine
HKP HK Parts
$49.95UMP 9mm 30 Round Factory Magazine - USA UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30 round magazine capacity. Each magazine counts as 3 U.S. Made compliant parts as an added bonus! This is the finest...HKP-17701$49.95 -
JMac 14F, 15F, 24F, 26F Muzzle Device Shims - FaceMount
JMAC Customs
$9.95JMac Customs Metric Face Mount Shims Custom shims for JMac muzzle devices. This kit includes varying thickness shims to "time" your muzzle device to your desired orientation. These shims are specifically made for JMac 14F, 15F, 24F and 26F muzzle devices...HKP-21446$9.95 -
HK45, HK45C, USPC Magazine Floorplate - .45 ACP
H&K Heckler & Koch
$23.95H&K HK USPC/45/45C Magazine Floor Plate Ideal for use for concealed carry or a lower profile on the magazine footprint. New HK German manufacture. Compatible With: HK USP Compact .45 HK USP Compact Tactical .45 HK45C HK45C TacticalHKP-01123$23.95 -
Out Of Stock
HK USP Full Size Ambidextrous Control Lever Set
H&K Heckler & Koch
$117.95Ambidextrous Left & Right Side Control Lever Set. Genuine Heckler & Koch ambidextrous control lever kit includes left and right side control lever as well as the roll pin - everything that's needed for installation on all USP or USPC...HKP-00916$117.95 -
HK Replacement Screw for BFS Selector Levers
HKP HK Parts
$1.98HKP Binary Selector Lever Set Screw This replacement screw is to mount your Franklin Armory BFS selectors. A great spare screw to replace damaged screws or lost screws as they are small in dimension and very easy to misplace. A must have set screw to...HKP-20686$1.98 -
HK USP, Mark 23 Magazine - 17 Round - Enhanced - .45 ACP
HKP HK Parts
$113.95HKP 17 Round HK USP .45 ACP/Mark 23 Enhanced Magazine - Black Our 17 round magazine starts life as a factory HK 12 round magazine then gets a capacity bump with our +5 mag extension. Compatible With: HK USP .45 HK Mark 23HKP-21459-M$113.95