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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On Sale
G.I. Tanto 7" Knife
Cold Steel
Now: $28.95Was: $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 quillon guard, and polypropylene handle scales exemplify a tactical knife stripped down...HKP-20329Now: $28.95Was: $34.99 -
Out Of Stock
HK USPC, P2000SK Magazine - 9mm - 13 Round - Flat Floorplate
H&K Heckler & Koch
$49.9513 Round HK USPC 9mm Magazine w/ Flat Floorplate Perfect for concealed carry or use as a lower profile magazine. Compatible With: HK USP Compact 9mm HK P2000 9mm HK P2000SK (will sit below the bottom of the magwell)HKP-02243$49.95 -
HK USP Match Trigger and Trigger Stop
H&K Heckler & Koch
$29.95HK USP Match Trigger & Trigger Stop The match trigger overstep screw is threaded M2.5 X .45 for those who want to use the screw in other applications or pistol triggers. Compatible With: HK USP 9mm HK USP 40 S&W HK USP 45 ACP HK USP Tactical HK...HKP-01971$29.95 -
On Sale
HK MP5, MP5K, SP5, SP5K Bolt Head - 9mm
RCM
Now: $198.95Was: $221.95HK MP5, 94, MP5K, & SP89 9mm - Complete Bolt Head Each bolt head incorporates a mixture of the finest quality US-made and factory German HK parts, making a new complete bolt head ready for use. Use this to replace out-of-spec bolt heads and worn-out...HKP-01241Now: $198.95Was: $221.95 -
Out Of Stock
B&T Ambidextrous Sling Pin- Large
B&T Brugger & Thomet
$57.95B&T Stock Ambidextrous Sling Pin That Replaces The Push Pin For Stock Each ambi sling pin will allow the use of a sling mounting location for either a left or right hand shooter for replacing the rear stock push pin with this ambi sling pin. Each...HKP-16887$57.95 -
On Sale
HK MP5, MP5K Scope Tab - Weldment
HKP HK Parts
Now: $7.95Was: $9.95MP5, MP5K Sight Tab - Weldment HK MP5, MP5K 17-4 Stainless H900 rear sight tab. The most correct MP5, MP5K rear sight base available. If you want your build to look as factory correct as possible then this sight base is an absolute must. Compatible...HKP-17503Now: $7.95Was: $9.95 -
Out Of StockOn Sale
HK UMP Magazine - 30 Round - 9mm - FDE
HKP HK Parts
Now: $24.95Was: $49.95HK Parts 9mm magazine - FDE for HK UMP THIS SHADE OF FDE HAS BEEN DISCONTINUED. STOCK UP AT HALF PRICE BEFORE THEY ARE SOLD OUT FOR GOOD. UMP 30 round magazine for the UMP. Each magazine features enhanced steel feed lips, and a 30-round magazine...HKP-20481Now: $24.95Was: $49.95 -
On Sale
B&T APC Magazine - 30 Round - 9mm - Translucent - KCI
KCI
Now: $37.95Was: $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 and range sessions Affordable Made in South Korea For the money this magazine is...HKP-20293Now: $37.95Was: $44.95 -
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 into a working 22 round mag. Each unit comes as a...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 Size USP Compact USP Tactical USP Elite USP Expert P2000 (not for the SK...HKP-02265$11.95 -
On Sale
HK G36, SL8 Family Armorer's Manual
HKP HK Parts
Now: $15.95Was: $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 aspects of history, origin, makeup,...HKP-00627Now: $15.95Was: $19.95 -
On Sale
HK MP5 Handguard - M-LOK - Extended Length
UTG PRO
$177.95 - $220.95UTG HK MP5 PRO Monolithic M-LOK Handguard - Extended Length The UTG PRO extended monolithic M-LOK handguard builds on the original with added real estate out front for mounting accessories. Where the original stops before the front sight,...HKP-21673-M$177.95 - $220.95