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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On Sale
HK MP5 Cocking Handle
AC-Unity
Now: $19.95Was: $24.95AC-Unity HK MP5 Cocking Handle Compatible With: MP5, 94, MP5SD MP5K, SP89, SP5K Zenith 9mm firearms, POF Other MP5 clones or custom HK 9mm buildsHKP-20158Now: $19.95Was: $24.95 -
Out Of Stock
HK45, HK45T Barrel - .45 ACP - 5.11" - Threaded 16x1 LH
H&K Heckler & Koch
$297.95H&K 45 .45 ACP Tactical Barrel - Threaded 16x1 LH New HK45 German factory cold hammer forged threaded barrel for use with flash hiders or sound suppressors. This is a drop-in barrel for any of the HK45 full-size pistols. No gunsmith is required as...HKP-01207$297.95 -
HK P7M8, P7M10, P7M13 Night Sights
Meprolight
$109.95Meprolight P7M8, P7M13, & P7M10 Night Sight Front & Rear Set Features: Unequaled Light Performance Brightest Night Sights Available Today Used by Military & Law Enforcement All Tru-Dot sights are covered by a 12-year usable illumination...HKP-01905$109.95 -
HK91, G3 Magazine Clamp
H&K Heckler & Koch
$149.95New HK German Magazine Clamp for all HK .308 Magazines New German HK G3 & HK 91 Magazine Clamp fits all HK G3 & HK 91 & PTR 91 steel or aluminum magazines. Clamps HK magazines together for tactical environments. Please Note: This part is no...HKP-00219$149.95 -
HK MP5, HK90 Series Bushing Sleeve for Elbow Spring - Semi Auto
HKP HK Parts
$8.95HK Parts Distance Sleeve replacement for your elbow spring in your Semi-Auto MP5 New USA manufacture. Semi auto spacer for elbow spring on the HK 90 series trigger packs. Micro polished and made from stainless steel. This is the finest semi auto...HKP-18210$8.95 -
HK MP5, HK33, G3 Optic Mount - Mid Range
B&T Brugger & Thomet
$129.95B&T MP5, HK33, G3, PTR - Mid Range Mount This scope mount will allow the the use of the HK fixed sights (through an oval opening) and also allowing the optic to sit higher thant the front sight tower for an unobstructed view. This will allow the use...HKP-16882$129.95 -
Out Of Stock
HK MP5 Cocking Handle - Knurled - Enhanced - UTG Pro Handguard Compatible
HKP HK Parts
$39.95HKP HK MP5 Enhanced Knurled Cocking Handle - UTG Pro Handguard Compatible Enhanced extended cocking handle designed for HK MP5 pattern firearms and compatible with UTG handguards. The knurled profile provides increased surface area for improved charging...HKP-22516$39.95 -
HK91, G3 20 Round Magazine - Steel - Refinished
H&K Heckler & Koch
$57.95HK German 20 Round Steel Magazine - Refinished HK G3 factory steel 20-round magazine, expertly restored to its former glory. This magazine has been meticulously refinished inside and out, featuring a polished follower along with a fully parkerized finish...HKP-21587$57.95 -
HK416, MR556, G36, SL8 Gas Piston
Nefarious Arms
$74.95Nefarious Arms Gas Piston for HK G36, HK SL8, HK416 and HK MR556 A great spare, upgrade, or replacement part for your HK. Includes 3 piston rings for a complete drop in replacement part. TiN coated for corrosion resistance. Compatible...HKP-21364$74.95 -
Out Of Stock
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Subsonic - Speak No Evil Monkey
Zenith
$43.95Zenith 30 Round HK MP5 Monkey Subsonic Labeled Magazine Easily identify a magazine loaded with supersonic rounds versus a magazine loaded with subsonic rounds. Features: Durable electro-plated black finish for exceptional corrosion resistance All steel...HKP-20916$43.95 -
HK MP5, HK94, SP5 Binary Trigger Group - Ambi - BFSIII - 9mm
FA Franklin Armory
$849.95Franklin Armory BFSIII HK-C1 - Trigger Group For MP5, SP5 Our new and improved HK-AR Navy ambidextrous lower housing is now paired with Franklin Armory binary trigger pack and a Magpul MOE grip to make this complete MP5-AR style binary trigger...HKP-20642$849.95 -
On Sale
HKP Shirt - Long Sleeve - Black
HKP HK Parts
Now: $13.95Was: $19.95HKP Long Sleeve Tee - Black Get your hands on some of our premium new apparel! Featuring our sleek new logo printed over soft cotton, this shirt is certain to catch an eye at the range! Features: Unisex fit Fine cotton High fidelity DTG...HKP-21024-MNow: $13.95Was: $19.95