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 VP9SK, P30SK Magazine with Finger Rest - 12 Round - 9mm
HKP HK Parts / Heckler & Koch
$69.95HK VP9SK & P30SK 9mm - 12 Round Magazine With Finger Rest This magazine has the same footprint, size, and overall length as the factory 10-round mag with pinky rest. Only, this offering gives you an extra two rounds with the pinky rest extension. A...HKP-21078-M$69.95 -
HK91 Polymer To Metal Trigger Group Conversion Kit
HKP HK Parts
$225.95HK 91/PTR 91 Polymer To Metal Trigger Group Conversion Kit. This is everything you will need to convert the lower trigger group on your HK 91 from polymer to metal housing with contoured grip. Just use your existing trigger pack to complete the...HKP-17362$225.95 -
HK UMP & B&T APC Folding Stock
B&T Brugger & Thomet
$140.00B&T HK UMP & B&T APC Folding Stock Swiss manufactured B&T APC & UMP Folding stock. (NFA rules apply) Compatible With: HK UMP .45, .40, & 9mm HK USC (with UMP conversion) Omega GS offerings in 45, 40, & 9mm B&T APC9/10/45...HKP-17441-M$140.00 -
HK VP9 Magazine Floorplate - 17 Round - Rubberized
H&K Heckler & Koch
$8.95Rubberized Floor Plate - 17 Round Magazine - HK VP9 HK German rubberized factory floor plate. This was made to be used specifically for the New VP9 17 Round Magazine.HKP-19321$8.95 -
HK Mark 23, SOCOM Magazine - 10 Round - .45 ACP
H&K Heckler & Koch
$59.00HK Mark23 SOCOM 10 Round Magazine Fits all HK Mark 23 and or Socom pistols.HKP-01226-M$59.00 -
Sling Pin O-Ring - Ambi
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
HK Standard Roller 8.00mm - Used
H&K Heckler & Koch
$7.958.00mm Standard Size (zero or unmarked) For HK Roller Lock Bolt Head HK spec unmarked 8.00mm roller that will fit all HK bolt heads including HK91/G3, HK93/33/53, HK94, MP5, SP89 all clones and the Cetme & Cetme clones. The best roller on the market...HKP-19374$7.95 -
Out Of Stock
HKP/HK P2000/USPC 18 Round Complete Magazine With Extension
HKP HK Parts / Heckler & Koch
$79.95HKP/H&K P2000/USPC 18 Round Complete Magazine With Extension HK P2000 +5 magazine extension coupled with a new full-size HK P2000, 13 round magazine. Each unit is then fully assembled as an 18 round HK P2000 magazine. Ideal for competitive shooters,...HKP-18662-M$79.95 -
HK USP Magazine - 9mm - 10 Round
H&K Heckler & Koch
$49.95H&K 10 Round HK USP 9mm Magazine Perfect for those that live in magazine restrictive states or for those that require a 10 round mag capacity. Compatible With: HK USP 9mm HK USP 9mm Tactical HK USP P8HKP-01239-M$49.95 -
HK91, G3 Extended Rifle Length Handguard - M-LOK
AIM
$129.95HK G3 EXTENDED RIFLE LENGTH HANDGUARD- M-LOK The most innovative and modular HK variant handguard on the market, our M-LOK HK forend can be used with all modern and traditional shooting techniques. CNC machined aluminum construction makes for a solid,...HKP-18173$129.95 -
HK SP5K Bench Mat
HKP HK Parts
$13.95HK MP5K, SP5K, SP89 Gunsmithing Bench Mat This isn't your ordinary gun cleaning mat. Show your pride for your HK SP5K firearm while using our high quality neoprene rubber backed and cloth topped gun cleaning mat to protect your gun bench, desk, kitchen...HKP-18213$13.95 -
HK MP5SD Barrel Brush Cleaning Tool
HiTec Arms
$119.95HiTec Arms barrel tool for cleaning your HK MP5SD Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up and avoid your suppressor seizing on your barrel. Made...HKP-21347-M$119.95