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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HK45, HK45 Compact, USP, USP Compact LEM Cocking Piece Elbow Hammer Rebound Spring
H&K Heckler & Koch
$9.95HK LEM Cocking Piece Elbow Hammer Rebound Spring This item is a common wear and replacement item for those who have LEM triggers installed. Compatible With: USP USPC HK45 HK45CHKP-02479$9.95 -
Out Of Stock
HK416 E1, MR556 Charging Handle - Ambidextrous
H&K Heckler & Koch
$129.95H&K HK MR556/416 E1 Charging Handle - Ambidextrous HK's design boasts a smooth & easy to release latch with an enhanced oversized charging handle. Compatible With: HK MR556 HK 416 Other AR15, M4 & M16 applicationsHKP-01959$129.95 -
HK MP5, HK94 Trigger Group - 9mm - 2 Position Navy Housing 0,1 - Safe, Semi Only
HKP HK Parts / Heckler & Koch
$649.95HKP MP5 & HK94 9mm Trigger Group 2 Position Navy Housing 0,1 - Safe, Semi Only A lower cost alternative to the hard-to-find German HK FBI or 0,1 ambidextrous trigger groups. Now, for the first time, we have the popular ambidextrous trigger group...HKP-17238$649.95 -
HK90 Series Trigger - Used
H&K Heckler & Koch
$14.95H&K 90 Series Trigger-Used German 90 series surplus trigger in used condition taken from demilled HK German G3 firearms. Compatible With: HK91, G3, PTR HK93, 33, 53 HK MP5, 94, Zenith, POF, MKE Clone or other custom buildsHKP-17920$14.95 -
HK Selector Set - Enhanced Ambi - Contoured SEF
HKP HK Parts
$74.95Ambidextrous Selector Lever Set For Contoured SEF Polymer Grip Frames Features: Billet machined enhanced left & right side selector lever set Latest HK style titanium detent, enhanced spring for positive movement between...HKP-18257$74.95 -
HK Soft Case 42" Single Rifle Case - Black
H&K Heckler & Koch
$129.95H&K Soft Case 42" Single Rifle Case - Black Protects 42" rifles and shorter with dense padding and durable water resistant PET shell material. Velcro wraparound handle to combine carrying handles. Large zippered storage compartment. Compatible...HKP-20228$129.95 -
HK MP5, HK33, HK53, HK93 Catch with Roller for SEF and Navy Trigger Packs
H&K Heckler & Koch
$8.95H&K Friction Sear For SEF, Navy Trigger Packs New HK German Friction Sear for SEF & Navy trigger packs. This item is also referred to as the catch with roller but more commonly called a sear.HKP-16198$8.95 -
HK G36, 36K Folding Stock - Full Size
H&K Heckler & Koch
$74.95HK G36 or G36K Folding Stock HK G36 Stock complete for full-size G36 rifles. This is the longest stock available for G36 rifles. This is also the standard G36 and G36K stock with the standard length. Compatible With: G36 G36K G36C G36E SL8 to G36...HKP-00277$74.95 -
On Sale
HKP 25 Round HK UMP 40 25 Round Magazine - FDE
HKP HK Parts
Now: $24.95Was: $49.95HKP 25 Round HK UMP 40 25 Round Magazine - FDE THIS SHADE OF FDE HAS BEEN DISCONTINUED. STOCK UP AT HALF PRICE BEFORE THEY ARE SOLD OUT FOR GOOD. Made from advanced polymer material with steel feed lips just like the German UMP 40 magazine...HKP-20519Now: $24.95Was: $49.95 -
HK Sling Hardware
H&K Heckler & Koch
$4.95HK German Sling Hardware New Old Stock Slider and sling tension adjuster for HK style slings and other sling applications. Steel manufacture.HKP-19367$4.95 -
HK45, VP9, P30, Adjustable Match Sights Superluminova Insert - Green
H&K Heckler & Koch
$119.95H&K HK VP9, HK P30, HK 45 Adjustable Match Sights Superluminova Insert - Green LPA Match Sights with SuperLumiNova insert. Adjustable in elevation and windage (front and rear sight set) Compatible With: HK VP9, VP9SK , VP40 (excludes optic ready...HKP-18827$119.95 -
HK USPC, P2000, P2000SK Magazine Floorplate - .40 S&W - 12 Round - Finger Rest
H&K Heckler & Koch
$23.9512 Round HK P2000/USPC .40 S&W Floor Plate w/ Finger Rest This item is most commonly used as a replacement item for the HK USPC .40, P2000 12-round floor plate with finger rest but will fit the below HK pistol magazines as well...HKP-01682$23.95