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
HK21 FMP Complete Build Kit- Non Matching Numbers
FMP HK CONTRACT
Now: $2,987.95Was: $3,124.97HK21 Complete Build Kit- Non Matching Numbers HK Parts brings you another exhaustive parts kit. Our HK21 parts kit includes everything you need to resurrect an iconic classic and hit the range for belt-fed action. We also included our own hanger with a...HKP-21626Now: $2,987.95Was: $3,124.97 -
Out Of Stock
HK G36, SL8 Front Sight Screw - Extended - Dual and Single Optics
USA
$5.95Single Optic Front Sight Screw - G36 - Extended This is a required part if you want to install either the dual or single optic. Compatible With: HK G36 HK SL8HKP-20894$5.95 -
HK51, PTR PDW Folding Stock - Adjustable
Choate
$239.95Choate PTR PDW and HK51 Tactical Folding Stock - Adjustable The adjustable length system lets smaller-stature shooters or officers wearing body armor have a weapon that fits their needs. This stock also has spacers to allow the stock to be lengthened by...HKP-14537$239.95 -
HK VP9, VP40 Grip Wrap for Medium Backstraps - Granulate
Talon Grip
$19.99TALON Grip - H&K VP9, VP40 - Granulate Black - Medium 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...HKP-20247$19.99 -
HK VP9, VP9SK, VP40 Polymer Support Sleeve
H&K Heckler & Koch
$8.95H&K HK VP9/VP9SK, VP40 Polymer Support Sleeve - Black New HK German VP9 & VP40 support sleeve made of polymer. A great replacement part to have on hand as they are easily marred when you depress the sleeve to access the firing pin or slide plate...HKP-16830$8.95 -
Out Of Stock
HK USPC Tactical Barrel - .40 S&W - 4.28" - Threaded 14.5x1 LH
RCM
$225.00RCM HK USPC .40 S&W Tactical Barrel - Threaded 14.5x1 LH Each USPC .40 S&W tactical barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded replacement...HKP-16708$225.00 -
Streamlight HK USP TLR-4 Light & Laser - Red
Streamlight
$229.95Streamlight HK USP TLR-4 Light & Laser - Red Features: White LED with Red Laser Ambidextrous momentary/steady On-Off switch One-handed snap-on and tighten interface keeps hands away from the muzzle when attaching/detaching Securely fits a broad...HKP-16916$229.95 -
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 Tactical Pistol Case - FDE
H&K Heckler & Koch
$129.95H&K Tactical Pistol Case - FDE Keep your handgun safe and secure with the HK Tactical Nylon Case. This heavy duty case will accommodate two pistols, accessories and two magazines. Includes movable, velcro-backed modular double magazine pouch, frame...HKP-17153$129.95 -
HK417, MR762 Rear Diopter Sight
H&K Heckler & Koch
$139.95H&K HK MR762/417 Rear Diopter Sight Specifications: Fits: 12", 16.5", 17", & 20" barrel lengths. Compatible With: HK MR762 HK 417 HK G28HKP-02547$139.95 -
HK51, PTR PDW Folding Stock
Choate
$228.95Choate PTR PDW (7.62x39) & (7.62x51 /.308) Folding Stock New HK Choate side folding stock complete with sling swivel, new German HK backplate, and ready to drop on your favorite HK rifle. No gunsmith is needed as this is an easy-to-do drop in stock...HKP-14348$228.95 -
HK91, G3 M4 Stock Complete
PTR
$234.95PTR HK 91/G3 (7.62x51/.308) M4 Stock Complete AR15/M16 retractable stock combo set up for use on an HK91, G3 & PTR91 style of rifles. This is a perfect compliment for those that want to use an AR M4 style stock on your HK rifle or SBR. Each stock set...HKP-16142$234.95