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 UMP, USC Barrel - Flanged - .45 ACP - 8"
HDPS
$329.95HDPS HK UMP 45 ACP 8 Inch Barrel - Flanged HDPS UMP barrels are perfect for the USC to UMP conversions and for a replacement UMP .45 barrel. Each barrel is an exact reproduction with all HK German...HKP-02130$329.95 -
HK91, G3 SEF Navy Style Trigger Housing - Push Pin - USED EXELLENT
H&K Heckler & Koch
$49.95H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Push Pin - USED EXELLENT German made Heckler & Koch grip housing comes in black polymer. Accepts standard SEF or 0,1 style trigger packs &...HKP-18335$49.95 -
HK45, HK45 Compact Magazine Spring - 10 Round
H&K Heckler & Koch
$6.95Heckler and Koch 10 Round Magazine Spring for HK45, HK45 Compact Factory German HK magazine spring for the 10-round HK45 and HK45 Compact magazines. Made from high-strength steel and designed to...HKP-01848$6.95 -
Out Of Stock
HK416 A1, MR556 Barrel Nut
H&K Heckler & Koch
$53.95Heckler and Koch Barrel nut for MR556A1 rifle All steel barrel nut. This item is a must-have repair and replacement part for removal or when you have any work done to your barrel, as the barrel nut...HKP-02535$53.95 -
HK MP5, HK94 Trigger Group - 9mm - 2 Position Navy Housing 0,1 - Safe, Semi Only
HKP HK Parts / Heckler & Koch
$649.95HKP MP5 & HK94 9mm Trigger Group 2 Position Navy Housing 0,1 - Safe, Semi Only A lower cost alternative to the hard-to-find German HK FBI or 0,1 ambidextrous trigger groups. Now, for the first time,...HKP-17238$649.95 -
FS1913 Stabilizing Brace - Folding
SB Tactical
$260.99SB Tactical FS1913 Folding Pistol Stabilizing Brace A low-profile, left side-folding, strut design compatible with all platforms utilizing an M1913 interface at the rear of the receiver. The FS1913...HKP-19132$260.99 -
On Sale
CETME L & LV 14" Spanish Bayonet & Scabbard
SchleTek
Now: $29.96Was: $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.HKP-20119Now: $29.96Was: $69.95 -
HK P9S Series Recoil Spring
H&K Heckler & Koch
$39.95Factory German HK P9 & P9S Recoil Spring It is no longer supported or available from HK Germany. The P9 and P9S have been out of production for many years. Get a spare while we still have them in...HKP-02046$39.95 -
Out Of Stock
HK MP5K, SP5K, SP89 Handguard with Handstop
H&K Heckler & Koch
$69.95HK SP5K Handguard Factory over-the-muzzle forearm for the MP5K platform. Compatible With: HK MP5K, SP5K, SP89 In spec. clones and cuHKP-18063$69.95 -
HK MP5K, SP89, SP5K Binary Trigger Group - 9mm
Magpul / FA Franklin Armory
$919.95Magpul SL HK MP5K - Binary Trigger Group Perfect for those seeking a binary option combined with the comfort of a Magpul housing. We've paired a Magpul SL housing with our compatible binary selector...HKP-21408-M$919.95 -
HK MP5, MP5K Micro Comp - 9mm - Knurled - Threaded 1/2x28 - Right Hand
HKP HK Parts
$26.95HKP HK MP5/K 9mm Knurled Micro Comp - Threaded 1/2x28 RH Our new MP5 Micro Comp combines the classic appearance of a factory-style thread protector with enhanced functionality. Extended and slotted,...HKP-21176$26.95 -
HK MP5, MP5K Flash Hider - A2 Style - 3-Lug - 9mm
HKP HK Parts
$99.95MP5, MP5K Flash Hider - A2 Style - 3-Lug - 9mm Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3...HKP-19520$99.95