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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SB Tactical SBM4 Pistol Stabilizing Brace
SB Tactical
$74.99SB Tactical SBM4 Pistol Stabilizing Brace The SBM4 is the evolution of the original SB15 Pistol Stabilizing Brace . . . thinner, lighter and with enhanced cheek weld ergonomics. Includes: Pistol stabilizing brace Adjustable nylon stabilizing...HKP-17903$74.99 -
HKP Front Sight Tower Ambi Sling Attachment Weldment
HKP HK Parts
$14.95HKP Front Sight Tower Ambi Sling Attachment Weldment Ambi sling loop that is welled and installed on all MP5F model front sight tower. A great upgrade for that custom build or for those that want to have the ability to have an ambidextrous sling loop at...HKP-17881$14.95 -
HK416, MR556 Buffer Tube - Enhanced - Commercial
H&K Heckler & Koch
$249.95HK 416, MR556 OTB (over the beach) Buffer Tube, Receiver Extension - Commercial: Genuine HK German manufactured 416, MR556 new style latest generation marine environment & over the beach buffer tube. Each Commercial buffer tube has built in drainage...HKP-15424$249.95 -
On Sale
AR-15 Commercial Buffer Tube
HKP HK Parts
Now: $16.95Was: $24.95AR-15 Commercial Buffer Tube Compatible With: All AR-15 style platforms Not correct length for HK rifles Features: Made From T7 7075 Aircraft grade aluminum Made in the USA 6 Position Each features a highly polished inside tube Black Mil-spec triple...HKP-02728Now: $16.95Was: $24.95 -
HK MP5K Apparel - Hats, Patches, and Shirts - V2
HKP HK Parts
$0.00HKP HK MP5K Apparel and Patch Collection - Version 2 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...HKP-22455-M$0.00 -
Out Of Stock
HK VP9 Ghost Comp - Threaded 1/2x28
HKP HK Parts
$109.95HKP HK VP9 Ghost Comp - Minimalist - Threaded 1/2 x 28 The HKP Ghost Comp is a compact option for shooters that desire recoil mitigation like found on our full-size comps, but in a smaller package. Will install on any VP9 barrel threaded in 1/2 x 28...HKP-22213$109.95 -
Out Of Stock
HK MP5, SP5 ACR Folding Stock With Direct Fit Adapter
F5 MFG
$229.95HK MP5/SP5 ACR Folding Stock w/Adapter Upgrade your MP5 platform with the F5-ACR Stock. Precision machined from 6061 billet aluminum for unmatched durability. Built for law enforcement, personal defense, and enthusiasts, this stock is lightweight,...HKP-22253-M$229.95 -
HK VP9 EDC Magwell - Ultra Low Profile
HKP HK Parts
$59.95HKP HK VP9 EDC Magwell - Ultra Low Profile The smallest and most streamlined EDC magwell for the HK VP9, now featuring a fully functional funnel designed for rapid, seamless reloads. Crafted from durable aluminum and treated with type 3 hard coat...HKP-22190-M$59.95 -
HK90 Trigger Spring- 3 Position - SEF and Navy
H&K Heckler & Koch
$9.95H&K HK SEF & Navy 3 Position Trigger Spring Elevate your HK 90 series performance with a factory-fresh trigger spring, designed for both semi and full-auto models. These are an essential upgrade for any 90 series owner, ensuring optimal...HKP-22178$9.95 -
Out Of Stock
HK417, MR762 Magazine - 5 Round
H&K Heckler & Koch
$78.95H&K 5 Round MR762/417 Magazine 5-round magazine for the MR762 and HK417. Compatible With: MR762 HK417HKP-22013$78.95 -
HK VP9 Optic Plate - Holosun 509T - Red Dot Pistol Mount
H&K Heckler & Koch
$50.95H&K VP9 509T Optic Plate This precision-machined mounting plate allows secure attachment of the Holosun 509T red dot sight to the H&K VP9 optics-ready slide. Built from durable materials, it ensures proper fitment, alignment, and reliable...HKP-21913$50.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magazine - 30 Round - 9mm - Turkish Contract - Seconds - Case of 55
Now: $1,096.95Was: $1,482.2555 Count Case of Turkish Contract 30 Round MP5 Magazine These Turkish military contract 30 round MP5 magazines are leftover "seconds" that HKP recently imported directly from Turkey. The magazines were manufactured by a Turkish contractor similar...HKP-21889Now: $1,096.95Was: $1,482.25