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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Hammer Spring, HK Burst Trigger Packs
H&K Heckler & Koch
$19.95H&K Hammer Spring For HK Burst Trigger Pack The HK German factory intermediate poundage "satin" gray hammer spring is found in all 9mm, 40/10, and .556/223 burst trigger packs and is proven to be the most reliable and longest-lasting spring for burst...HKP-01111$19.95 -
Out Of Stock
HK MP5 A3 Stock - Surplus - Good Condition
H&K Heckler & Koch
$578.95Military German manufactured A3 Retractable Stock - Used Each Used German HK stock will vary from Fair-Good Shape (early 80's manufacture) A one-time offering of some well used German military stocks that need some TLC and a refinish to get them looking...HKP-16659$578.95 -
Link Anchor Poly Handstop
Strike Industries
$19.95Strike Industries Link Anchor Poly Handstop The LINK Anchor Handstop is made from a heat-resistant polymer that allows comfortable grip in any shooting condition. It has a low profile design that allows mounting through any MLOK or KeyMod openings. The...HKP-19645$19.95 -
HK VP9B Mag Release Button Set - S, L, XL
H&K Heckler & Koch
$9.95HK VP9B Mag Release Button - S, L & XL New HK German Manufacture. Will fit the new VP9B button mag release model. A perfect way to customize your mag release fitment. Compatible With: VP9B and VP9LB models only NOT compatible with VP9A1 F,...HKP-19746$9.95 -
HK21E, HK23E Locking Piece #9 - 40 Degree
RCM
$49.95Locking Piece #9 - 40 Degree - US Made Compatible With: HK 21e HK 23eHKP-02521$49.95 -
HK MP5K, SP89, SP5K Barrel - 5.85" - Threaded 1/2x28 with 3 Lug
B&T Brugger & Thomet
$350.00B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from hand-picked Swiss...HKP-17894$350.00 -
HK MP5, HK94, SP89, SP5K Cocking Handle
H&K Heckler & Koch
$44.95HK MP5, 94 & MP5K, SP89, SP5K Cocking Handle - German New factory HK German latest manufactured and updated style. This part is the current model that HK is equipping all new HK MP5/MP5K variants with. Made to last and the nicest of all the...HKP-00095$44.95 -
On Sale
T65 Rifle Parts Kit - Gas Piston - Vintage Taiwanese
Other
Now: $899.95Was: $1,119.95Taiwanese T65 Gas Piston Rifle Parts Kit - Vintage We have a limited number of these super rare gas piston rifle parts kits. Each kit was used in Central & South America during active military conflicts and civil war. These kits are heavily...HKP-19676Now: $899.95Was: $1,119.95 -
HK SEF Short Axle Selector Lever For Metal Trigger Housings Only
HKP HK Parts
$19.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only HK German steel SEF selector lever. Please note that the polymer (plastic) style SEF housing uses the longer axle SEF selector lever not this product offering. Brand new factory...HKP-17910$19.95 -
HK MP5 Retractable Buttstock - 4 Position - RAL8000
H&K Heckler & Koch
$764.95HK German MP5 & HK SP5 A3 "F" Style Retractable Rear Stock - 4 Position - RAL 8K This German HK A3 retractable is the latest & greatest HK retractable German stock available. Now in the desirable RAL 8000 color. The F stock is designed to take...HKP-21265$764.95 -
On Sale
LWRC SMG 45 1913 Stock or Brace Adapter - Rail Mount
HKP HK Parts
Now: $59.95Was: $119.95HKP - LWRC SMG 45 1913 Rail Brace/Stock Adapter We now bring you a new stock adapter option for your LWRC SMG 45. With our rail stock adapter you now have the option to mount any 1913 style stock onto your LWRC SMG 45. Cheek wield is adjustable using any...HKP-20790Now: $59.95Was: $119.95 -
On Sale
CETME L & LV 14" Spanish Bayonet & Scabbard
Now: $39.95Was: $69.95CETME L & LV 14" Spanish Bayonet & Scabbard Complete your CETME L with an original bayonet! This bayonet served in the Spanish army and was only issued with the Model L or LV rifles. These 14 inch bayonets have an impressive 8 3/4" blade. Push...HKP-20119Now: $39.95Was: $69.95