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, HK53 Locking Roller for Bolt Head - 9mm - 8.02mm
H&K Heckler & Koch
$39.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please Note: The price listed is per roller...HKP-00507$39.95 -
HK P2000SK Magazine Floorplate - 9mm / .40 S&W - 9,10 Round - Low Profile
H&K Heckler & Koch
$24.95New HK German P2000 SK Magazine Flat Floor plate Low profile style without the finger rest and best for concealed carry or a low profile. This is the perfect upgrade for those who want a slim profile and less obtrusive effect when carrying concealed. It...HKP-01676$24.95 -
HK45, P30, P2000 Backstrap Roll Pin
H&K Heckler & Koch
$5.95HK P30, 45, & P2000 Backstrap Roll Pin This is the commonly replaced roll pin for the rear backstrap that you can swap and change to different sizes. Great spare to have on hand when doing maintenance on your HK pistol. HK suggests...HKP-02274$5.95 -
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 -
On Sale
HK91, G3, MP5 Pistol Grip
AC-Unity
Now: $8.95Was: $9.95AC-Unity HK G3 Pistol Grip Beautifully designed and textured for a great feel and sure grip. Also correct for HK33 or MP5 style weapons using steel trigger housings with buttstocks mounted with steel backplates. Constructed from advanced...HKP-21629Now: $8.95Was: $9.95 -
On Sale
HK Replacement Screw for BFS Selector Levers
HKP HK Parts
Now: $1.45Was: $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-20686Now: $1.45Was: $1.98 -
On Sale
HK Contract 3 Point Sling - OD Green
H&K Heckler & Koch
Now: $39.71Was: $52.95HK Contract 3 Point Sling - OD Green HK contract 3 point sling NIW. This is the best valued HK 3 point sling available for the HK 90 series of firearms. HK Green in color.HKP-19184Now: $39.71Was: $52.95 -
On Sale
HK91, G3 Handguard - M-LOK
HKP HK Parts
$127.95 - $135.95HK G3, HK91 & PTR Low Profile M-LOK Forearm The HKP M-LOK tactical handguard installs easily to provide a solid base to mount M-LOK accessories. Designed from the ground up by HK enthusiasts with tactical shooting requirements in mind...HKP-17265-M$127.95 - $135.95 -
On Sale
Century Arms AP5 Flash Hider
MKE
Now: $69.95Was: $79.95MKE AP5 Flash Hider - 3-Lug This 3-lug flash hider is perfect for Century Arms AP5. Specifications: Made in Turkey by MKE Tri-lug quick disconnect mounting Compatible With: Century/MKE AP5 & AP5-P MAC5 & MAC 5K NOT compatible with...HKP-21185Now: $69.95Was: $79.95 -
On Sale
HK91, G3 Full Length Handguard - M-LOK
AIM
Now: $84.95Was: $99.95HK 91 RIFLE LENGTH HANDGUARD- M-LOK This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all M-LOK accessories. Superior ergonomics and simple, drop-in installation makes this the best HK pattern rail on...HKP-18176Now: $84.95Was: $99.95 -
Out Of Stock
Picatinny Optic Rail - Claw Adapter
UTG PRO
$14.95HK Claw Mount To Picatinny Style Rail This part allows all STANAG style scopes to accept the universal Picatinny style rail. Each rail adapter comes with rail and mounting hardware. This part adds 6 1/8 inches of rail space to the top of your claw mount...HKP-02042$14.95 -
On Sale
HK VP9, USP, HK45 Handgun Grip
Hogue
Now: $9.95Was: $11.95Hogue Grips Universal HK Handgun Grip The Hogue Grip hugs the contours of your gun. Molded from their modern" soft" but durable rubber" Handall grip sleeves are easily installed and provide years of dependable service. Soft textured rubber...HKP-02519Now: $9.95Was: $11.95