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 2 Round Count Burst Wheel for 4 Position Trigger Packs
H&K Heckler & Koch
$119.95H&K 2 Round Count Burst Wheel for 4 Position Trigger Packs This wheel can be used to convert a 0,1,3, F to a 2-round burst rather than a 3-round burst option.HKP-02488$119.95 -
HK416, MR556 Rail System - 10.5" - Super Modular - FDE
Geissele
$499.95Geissele HK416, MR556 10.5" Modular Rail - Desert Dirt Color (DDC) 9.7 " Extended HK 416 free float rail for use with all HK 416 & MR556 uppers.Please note: On the HK416 models the sling attachment...HKP-16460$499.95 -
HK416, MR556, HK417, MR762 Sear Release Rocker Latch
H&K Heckler & Koch
$99.95Heckler and Koch HK MR556 /MR762/ HK416 / HK417 Sear Release Rocker Latch Compatible With: HK MR556 HK 416 HK MR762HKP-12705$99.95 -
On Sale
HK416, MR556 Carbine Handguard - 9" - M-LOK
MI Midwest Industries
Now: $206.96Was: $229.95MI Midwest Industries 9" Carbine Handguard for M-LOK Compatible HK416 and HK MR556 Features: MHKP-18436Now: $206.96Was: $229.95 -
HK G36 Hammer Spring - Right Side
H&K Heckler & Koch
$8.95HK G36 Right Side Lower Hammer SpringHKP-01857$8.95 -
$7.95 -
HK UMP, G36 Selector Lever - Right - 3 Position
H&K Heckler & Koch
$19.95HK UMP & G36 Right Safety Selector Lever For All 3 Position Lowers OnlyHKP-01888$19.95 -
Out Of Stock
PTR 32 Complete Bolt Head - 7.62x39 - US Made
$199.95PTR 32 (7.62x39) Complete Bolt Head - US Made This item is a complete bolt head using a combination of new HK German and new US-made Parts. Bolt Head counts as one US-made compliance part for the...HKP-02280$199.95 -
On Sale
HK33, HK53, HK93, HK91, G3 PRS Extended Butt Pad
Magpul
Now: $14.36Was: $15.95Magpul HK 91/G3 (7.62x51/.308) PRS Extended Butt Pad Replaces standard butt pad and adds 1/2" to the overall length of the PRS stock. This part also adds slightly more cushioning, as it has more...HKP-00843Now: $14.36Was: $15.95 -
On Sale
HK91 Handguard - Carbine Length - M-LOK
AIM
Now: $58.46Was: $64.95HK 91, PTR 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,...HKP-18177Now: $58.46Was: $64.95 -
HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm
H&K Heckler & Koch
$129.95New HK German MP5 40 or MP5 10mm Low Impulse Locking Piece Marked #24 This is the factory 90-degree locking piece. Used for standard loads with low to average impulses. Compatible With:HKP-00438$129.95 -
Out Of Stock
HK MP5 A2 Fixed Buttstock - USED
H&K Heckler & Koch
$149.95H&K Heckler & Koch Used A2 Rear Buttstock for HK MP5 Factory German MP5 A2 buttstock in excellent condition, ready to drop in. These stocks feature authentic date codes for those seeking a classic...HKP-00680$149.95