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 MP5K, MP5K, SP89 Trigger Group - Binary - 9mm
Magpul / FA Franklin Armory
$889.95 - $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 levers and completed it with a Franklin Armory trigger...HKP-21408-M$889.95 - $919.95 -
On Sale
Tin Case with Flares - 26.5MM
Other
Now: $699.95Was: $899.95Tin Case with Flares - 26.5MM Sealed tin with 14 10-packs of flares for a total of 140 flares per tin. Each 10-pack of Polish military flares include 2 of each of the following: White Fire, Red Fire, Green Fire, Blue Smoke, and Red...HKP-20794Now: $699.95Was: $899.95 -
HK USPC, P2000 Magazine .40 S&W - 12 Round
H&K Heckler & Koch
$58.9512 Round HK USPC & HK P2000 .40 S&W Magazine Low-profile magazine for concealed carry or a lower profile. Each is brand new old stock and may or may not be LEO marked on the magazine body. Compatible With: HK USP Compact .40 S&W HK P2000 .40...HKP-02244$58.95 -
HKP .40 S&W Micro Comp - Threaded 9/16x24
HKP HK Parts
$29.95HKP .40 S&W Micro Comp - Threaded 9/16x24 The HK Parts Micro Comp & Thread Protector is a lightweight, fully functional device that combines the benefits of a compensator and a thread protector. Designed for easy attachment to any factory spec...HKP-19956$29.95 -
HK MP5K, SP89 Handguard - MLOK
HKP HK Parts
$89.95HKP MP5K/SP89 9mm Handguard - M-LOK The M-LOK tactical handguard installs on your firearm with minimal effort, no fitting required. Designed from the ground up by roller-lock enthusiasts. Features: Made in the USA (922r compliant) Accepts ALL...HKP-17264$89.95 -
HK MP5, MP5F Recoil Rod Guide Ring - Enhanced
HKP HK Parts
$3.95HKP MP5F & MP5 40,10 Recoil Rod Guide Ring For Recoil Rod Assemblies - Enhanced New Enhanced material for greater longevity and durability Our US made recoil rod guides are the made from the strongest most durable material available much better than...HKP-17835$3.95 -
On Sale
FS1913 Stabilizing Brace - Folding
SB Tactical
Now: $207.95Was: $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 is a complete assembly offering pull-through opening and...HKP-19132Now: $207.95Was: $260.99 -
HK G36, 36K Folding Stock - Full Size
H&K Heckler & Koch
$88.95HK G36 or G36K Folding Stock HK G36 Stock complete for full-size G36 rifles. This is the longest stock available for G36 rifles. This is also the standard G36 and G36K stock with the standard length. Compatible With: G36 G36K G36C G36E SL8 to G36...HKP-00277$88.95 -
HK417, MR762, G28 Buttstock Set - Adjustable
H&K Heckler & Koch
$599.95HK G28 Fully Adjustable Stock For The MR762 & HK 417, G28 The hard to find elusive HK G28 adjustable stock kit complete with the upgraded parts needed to convert a stock MR762 or HK417 to allow this stock system to be used. HK German manufacture and...HKP-16761$599.95 -
HK USP .40 S&W +5 Magazine Extension
HKP HK Parts
$49.95HKP HK USP .40 S&W +5 Magazine Extension HK Parts magazine extension +5 adds 5 additional rounds to the full size USP & USP Tactical 13 round magazine. It uses the existing mag body, spring, and follower. Just slide the magazine extension on and...HKP-18645-M$49.95 -
HK UMP & B&T APC Folding Brace
SB Tactical
$79.95SB Tactical HK UMP Omega / APC Folding Brace SB tactical folding brace for the HK UMP, Omega UMP & B&T APC offerings. This is a brand new offering that was made for the new release of the Omega UMP pistol offerings now hitting the market...HKP-18258$79.95 -
PTR Universal Windage Adjustment Knob For Rear Sight
PTR
$9.95HK 90 Series Hand Windage Adjustment Knob For Rear Sights Steel windage screw that allows you to adjust the windage for the rear sights with a quick and easy adjustment without the use of a screwdriver as found on the factory rear sight screws. Perfect...HKP-01444$9.95