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 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 -
HK 91, G3 Handguard - Slimline Style - OD Green - Used
H&K Heckler & Koch
$14.95H&K 91/G3 (7.62x51/.308) Slimline Forearm - OD Green - Used This is a used German Military surplus OD green Slimline Forearm with a heat shield. Each forearm is in good condition and can be restored with a bit of TLC. The conditions range from good...HKP-16265$14.95 -
HK Semi Auto Trigger Box - Billeted
HKP HK Parts
$69.95HK 90 Series, Century, PTR, & Zenith Trigger Pack - USA This part is a perfect 922r compliant part as it counts as one of the needed US-made parts. Each unit comes with new style updates for ease of putting parts into the trigger pack, and your...HKP-02384$69.95 -
HK MP5 , HK416 Barrel - .22LR - 16.1"
RCM
$199.95RCM HK MP5 / 416 .22LR Rifle Barrel This is the first and only offering of a replacement barrel for the HK .22LR platforms. Replacing the barrel previously required sending the receiver to H&K and having the assembly returned to an FFL. ...HKP-21407$199.95 -
KCI 30 Round B&T APC 9mm Magazine - Translucent
KCI
$44.95Korean 30 Round B&T APC 9mm Magazine - KCI USA Features: Brand new factory fresh, individually sealed magazine 30 round capacity 9mm caliber Great for plinking & range sessions Affordable Made in South Korea For the money this magazine is the...HKP-20293$44.95 -
On Sale
HK P30SK Compensator - Rail Mount
HKP HK Parts
Now: $134.95Was: $169.95HKP HK P30SK Rail Mount Compensator - Black This HK P30SK rail mount compensator is the perfect accessory brought to you by HK Parts. This compensator has a sleek design that flows with the lines of the firearm for a seamless addition.The HK Parts P30SK...HKP-20171Now: $134.95Was: $169.95 -
HK VP9SK, P30SK Magazine Extension Kit - +5
HKP HK Parts
$39.95HKP +5 HK VP9SK/P30SK Magazine Extension Kit Adds 5 additional rounds to the HK VP9SK/P30SK 10 Round magazine with the simple swap of the floor plate & high reliability mag spring. This is an easy 2 min. swap. No gunsmithing needed. Ultra low...HKP-18494$39.95 -
HK416, MR556 Vented Upper Gas Block - 10.4"
H&K Heckler & Koch
$167.95H&K HK MR556/416 10.4" Complete Vented Upper Gas Block New HK German manufacture newest "VENTED" version direct from HK Germany. Great upgrade part for existing 10.4" uppers that have the older style non-vented gas block or to use on the MR556 and HK...HKP-18056$167.95 -
HK91, G3 Barrel Chamber Flute Cleaning Brush
H&K Heckler & Koch
$25.95HK German .308/7.62mm Chamber Flute Brush- New This brush is a must-have for cleaning the chamber flutes on a G3/91-style firearm. If the flutes become clogged or dirty, the firearm will cease to extract properly and render your HK firearm useless, until...HKP-00500$25.95 -
Out Of Stock
B&T MP5SD Tri-Rail Handguard
B&T Brugger & Thomet
$375.00B&T MP5SD Tri-Rail Handguard B&T manufactured MP5SD Tri-rail. Factory HK Part number 299459. Made in Switzerland for HK & B&T. Compatible With: All factory spec current production MP5SD models Specifications: Color: Black Height max:...HKP-16884$375.00 -
Out Of Stock
ACRO P-2 Red Dot Reflex Sight - 3.5MOA
Aimpoint
$599.00Aimpoint ACRO P-2 Red Dot Reflex Sight - 3.5MOA Compact and boasting high clarity, the ACRO is a perfect compliment to any SMG platform. Specifications: 3.5 MOA dot size 50,000 hours (over 5 years) of constant operation 4 night vision compatible...HKP-21625-M$599.00 -
HK SP5K Grip Module - SL
Magpul
$219.95 - $239.95Magpul HK SP5K SL Grip Module HK Parts brings a solution for those wanting to upgrade to the Magpul SL grip. This is a perfect option for those wanting improved ergonomics and a modern aesthetic. The pictograms are hand-painted to match the factory...HKP-20945-M$219.95 - $239.95