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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK MP5 Mount - Trijicon MRO - Ultra Low Profile - Battle Steel
Botach Tactical
$69.95Botach Battle Steel HK Ultra-Low Profile Integrated Mounting Platforms for the Trijicon MRO Ultra-low-profile mount for HK MP5/HK33/HK53 firearms. Features a lower 1/3 cowitness for the Trijicon MRO sights. Compatible With: HK MP5 &...HKP-19530$69.95 -
HK45C, HK45T, USPC, USPCT Magazine - .45 ACP - 8 Round
H&K Heckler & Koch
$64.95H&K 8 Round HK USPC/45C .45 ACP Floorplate Brand new German HK manufacture. Compatible With: HK45 Compact, HK45 Tactical HK USP Compact 45, HK USPC TacticalHKP-01454$64.95 -
HKP +3 HK45 Tactical Magazine Extension
HKP HK Parts
$49.95HKP +3 HK 45/45 Tactical Magazine Extension HK45 & HK45 Tactical +3 magazine extension adds three additional rounds to the 10 round factory HK45, HK45 Tactical magazine. Made in the USA out of aircraft grade hard coated in HK red aluminum with steel...HKP-18385-M$49.95 -
HK416, MR556 Magazine - 20 Round
H&K Heckler & Koch
$74.95H&K 20 Round HK MR556 & 416 5.56/.223 Magazine New HK416 and MR556 Factory 20 Round Steel Maritime Coated Magazine. Will fit and work in all AR-15/M16 weapons. Perfect for those who need a lower profile magazine or who will be doing prone or...HKP-00029$74.95 -
HK Ambidextrous Selector Lever - Right Side
H&K Heckler & Koch
$89.95H&K Ambidextrous Selector Lever - Right Side This is the right-side selector of the ambidextrous trigger packs. This part will only work on ambidextrous style or pictogram style housing and trigger packs. New HK German manufactured. Compatible...HKP-00127$89.95 -
HK USP Magazine Floorplate - .45 ACP - 12 Round - Extended
H&K Heckler & Koch
$10.50HK USP 45 12 Round Magazine Floor Plate - Extended A great spare to have on hand as these are prone to breakage if mags are dropped on hard surfaces. Compatible With: All HK USP 45 full size & USP 45 Tactical 12 round magazines.HKP-00920$10.50 -
HK USP Magazine Spring - Jet Funnel - 9mm / .40 S&W
H&K Heckler & Koch
$9.95HK USP Jet Funnel 9mm / .40 S&W Magazine Spring Latest Production Longer, Stronger Spring For All HK Jet funnel Magazines. Limited supplies are available on this hard-to-find spring. Great replacement for all HK USP jet funnel...HKP-02508$9.95 -
HKP - 15 Round HK45 Magazine
HKP HK Parts / Heckler & Koch
$113.95HKP - 15 Round HK45 Magazine HK45 & HK45 tactical +5 magazine extension coupled with a new HK German 10 round HK45 magazine. Each unit is then fully assembled as a 15 round magazine. Ideal for competition shooters that would like a higher magazine...HKP-20788$113.95 -
Out Of Stock
HK G36C Stock - Cheek Rest
H&K Heckler & Koch
$166.95HK G36C Stock With Cheek Piece Installed - German Genuine German Heckler & Koch G36 stock. The G36C stock is a full inch shorter than a standard G36 stock. This is an ideal stock for those wearing body armor, for those who are doing the SL8...HKP-00278$166.95 -
HK UMP Folding Stock -
HKP HK Parts
$119.95UMP Folding Buttstock - GSG9 New UMP folding stock. This is a required part for the USC-UMP Conversion using the (stock block B). Compatible With: HK UMP .45 HK UMP .40 HK UMP 9mm HK USC-UMP conversions Can also be used on B&T firearm and stock...HKP-19910$119.95 -
HK USP, USP Compact Match Hammer
H&K Heckler & Koch
$103.95HK Match Hammer This is the factory-correct match hammer marked with the factory-correct "S" marking on the left-hand side of the hammer. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W...HKP-02602$103.95 -
HK MP5, MP5K, SP89 Handguard with Handstop
HKP HK Parts
$29.95HK SP89, SP5K, MP5K - Forearm Compatible With: HK MP5K HK SP89 HK SP5K MP5 Reverse Stretch Style Builds Custom MP5K/ SP89 builds Specifications: Made in the USA 922r Compliant Brand: HK Parts *Can be modified to install on MP5K-N builds with 3...HKP-17397$29.95