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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HK51, PTR PDW Stock - AR15 Style
PTR
$339.95HK51, PTR PDW Magpul Stock - AR-15 Style AR15/M16 to HK 90 series stock adapter for the HK51 and PTR PDW. This is a perfect compliment for those that want to use the popular Magpul Moe stock. Each adapter includes the proprietary locking ring, Magpul MOE...HKP-15753$339.95 -
Out Of Stock
HK33, HK93 Barrel - 5.56 / .223 - 16.1" - Threaded 15x1 RH
PTR
$163.95PTR HK 93/33 (5.56/.223) Barrel - Threaded 15x1 RH New US made Barrel by PTR for the HK93, HK33 style of firearms. Specifications: Made In The USA 922r Compliant Counts as 1 US Made Part Overall length 16.1" 4140 Ordnance Grade Steel Threaded 15x1...HKP-16458$163.95 -
On Sale
HK HK91 Handguard - Carbine Length - Keymod
AIM
Now: $48.95Was: $84.95HK91 CARBINE LENGTH HANDGUARD- KEYMOD This sleek streamlined design is an ultra-low-profile handguard with generous mounting space to accept all Keymod accessories. Compatible With: Carbine length variants only. Specifications: Black...HKP-18178Now: $48.95Was: $84.95 -
HK33K Barrel - 300 BLK - 12.5" - Threaded 5/8x24
RCM
$234.95RCM HK33K .300 BLK K Length Barrel - Threaded 5/8x24 Each barrel is designed for use with popular AAC-Style quick detach muzzle brakes and suppressors featuring a 5/8x24 thread pitch. It is also suitable for most .300 BLK suppressors and applications...HKP-16952$234.95 -
HK33, HK53, HK93 Drum Mag - 100 Round
Beta C-Mag
$689.95100 Round Beta C-Mag for HK 93, 33, 53 - 5.56/.223 systems 100 Round Beta C-Mag Drum System for .223 Remington and 5.56 NATO calibers. These drums are designed with clear back covers to enable you to see your round count. This is the top-of-the-line...HKP-00486-M$689.95 -
HK MP5 Trigger Housing - 3 Position Burst 0,1,2 Pictogram - Push Pin - .40 S&W, 10mm
H&K Heckler & Koch
$199.95H&K MP5 40/10 3 Position (0,1,2 Pictogram) Burst Trigger Housing - Push Pin This factory push pin grip frame features 3 position (0,1,2) pictogram markings, designed for the MP5 40/10 series. It is a new HK German grip frame that provides the...HKP-16469$199.95 -
Out Of Stock
HK MP5 Magazine Follower - .40 S&W, 10mm
H&K Heckler & Koch
$19.95H&K Heckler and Koch Magazine Follower HK MP5 40,10 A perfect replacement part for all HK MP5 40,10 magazines.HKP-01635$19.95 -
HK MP5K Trigger Group - Semi Auto- Navy SEF - Clipped and Pinned
H&K Heckler & Koch
$599.95MP5K Navy Style SEF Semi Trigger Group - C/P HK German manufactured parts. Each unit comes with the professionally converted SEF navy style SEF clipped & pinned housing and semi auto only German HK trigger pack. All trigger groups include a new 3rd...HKP-18055$599.95 -
On Sale
HK MP5K, SP5K, SP89 Trigger Group - 3 Position Semi-Auto - Clipped and Pinned
H&K Heckler & Koch
Now: $1,289.95Was: $1,899.95Heckler and Koch MP5K, SP5K Semi Auto 3 Position Trigger Group - Clipped and Pinned Semi-automatic trigger group configured in a 3-position clipped and pinned housing. Provides the appearance of a factory 3-position configuration while retaining a...HKP-00186Now: $1,289.95Was: $1,899.95 -
Out Of Stock
HK MP5 Trigger Housing - Burst 3 Position 0,1,3 Pictogram - Push Pin Style - USED
H&K Heckler & Koch
$199.95H&K 3 Position (0,1,3 Pictogram) Burst Trigger Housing - Push Pin Featuring the 3 Position pictogram (0,1,3), this housing is crafted from durable black polymer. This ambidextrous housing is push pin for a secure fit on semi-auto receiver shelves...HKP-02697$199.95 -
HK MP5N Parts Kit - A3 Stock and Navy 3 Position Lower - RARE
H&K Heckler & Koch
$2,958.95H&K MP5-N Parts Kit 100% German - A3 Stock & Navy 3 Position Lower - RARE All German HK MP5 Navy parts kit with 3 lug and threaded barrel, Action 3 bolt group, A3 retractable stock, 3 position navy lower, one 30 round curved...HKP-15172$2,958.95 -
HK MP5 9mm Parts Kit 100% German - A2 Stock - FBI Lower
H&K Heckler & Koch
$1,889.95HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm (Minus Receiver) All MP5 Kits: 100% German Parts HK 3-Lug MP5 Barrel - cold hammer forged Cocking Tube Front Sight Tower Wide Forearm - Black Bolt Group - MP5 Full Auto Two small and one...HKP-01911$1,889.95