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 G36, SL8 Family Armorer's Manual
HKP HK Parts
$19.95HK G36 & HK SL8 Family Armorer's Manualf This manual is the most comprehensive manual available for the G36 & SL8 family of firearms. The manual covers the G36 & SL8 family in-depth to include all...HKP-00627$19.95 -
HK VP40, P30 Magazine - 22 Round - .40 S&W
HKP HK Parts / Heckler & Koch
$99.95HKP HK Parts and Heckler and Koch 22 Round .40 Cal Magazine for HK VP40, HK VP40 Tactical, HK P30, HK P30L, HK P30S HK Parts take an existing 13 round mag the +10 mag extension and assembles them...HKP-19547$99.95 -
HK USP, P2000, HK45 Trigger Return Spring - Heavy 8.5 lb.
H&K Heckler & Koch
$11.95Heckler and Koch Heavy 8.5 lb. Trigger Return Spring Also known as the heavy LEM trigger spring for the LEM and TGS conversions. Compatible With: USP Full SiHKP-02265$11.95 -
On Sale
Sig P320 +5 Magazine Extension
Tactical Precision MFG
Now: $14.96Was: $44.95TPM Sig P320 +5 Magazine Extension This extension is made from machined 6061 aluminum. This magazine extension will increase the capacity, reload speed, mag drops, and overall functionality of your...HKP-21135-MNow: $14.96Was: $44.95 -
HK USP Night Sight Set - Green
Meprolight
$99.99Meprolight HK USP Night Sight Set - Green Features: Unequaled Light Performance Brightest Night Sights Available TodayHKP-01906$99.99 -
Out Of Stock
Barrel Flute Cleaning Brush - 9mm
H&K Heckler & Koch
$38.95Heckler and Koch Barrel Flute Cleaning Brush for 9mm This HK-manufactured brush is a must-have for the proper care of your HK 9mm rifle/pistol, as the flutes need to be clean and free of carbon for...HKP-00138$38.95 -
On Sale
G.I. Tanto 7" Knife
Cold Steel
Now: $31.50Was: $34.99G.I. Tanto - Cold Steel Knife The G.I. Tanto is a no-nonsense tactical knife that comes with a legion of practical uses. The GI Tanto's broad blade, integral qHKP-20329Now: $31.50Was: $34.99 -
On Sale
HK MP5 Folding Stock with HK Parts Adapter
B&T Brugger & Thomet
Now: $236.26Was: $277.95B&T Folding Stock for All MP5 Full Size Variants Swiss made B&T folding stock completely assembled With our own HK Parts stock adapter. CNC machined aircraft grade aluminum with QD sling attachment...HKP-20216Now: $236.26Was: $277.95 -
HK USPC, P2000 Magazine Floorplate - .40 S&W - 12 Round
H&K Heckler & Koch
$22.95HK USP Compact/ P2000 .40 12 Round Floor Plate Flat - Low Profile Compatible With: HK USP Compact 40 S&W 12 Round Magazine HK USP Compact 357 SIG 12 Round MagazineHKP-01435$22.95 -
HK UMP, USC Handguard Rail - Side or Bottom
H&K Heckler & Koch
$67.95HK Heckler and Koch Factory German Side or Bottom Rail with Screws HK USC and HK UMP Up to three sides can be used - two for the sides and one for the bottom. Best quality and price available...HKP-00597$67.95 -
HK91, G3 Buttstock, Grip, Handguard Set - Jungle Green - Surplus
H&K Heckler & Koch
$26.95Original German Army Used Surplus G3, 91, PTR Tropical/Jungle Green Stock Set Factory HK German production. Each stock set is used but in perfect working order. Each set is in overall good condition...HKP-16331$26.95 -
HK G3 Buttstock Buttpad - Standard - Like New
H&K Heckler & Koch
$11.95H&K Standard Stock Buttpad - Like New This HK German-manufactured stock buttpad in dark OD green is the ultimate replacement for your worn-out or broken buttpad on your G3 A2 fixed stock. Handpicked...HKP-21479-M$11.95