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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Out Of Stock
HK UMP, USC Bolt Catch
H&K Heckler & Koch
$36.95HK UMP & USC Bolt Catch New HK German lower. Compatible With: HK UMP HK USCHKP-01897$36.95 -
HK91, G3 SEF Navy Style Trigger Housing - Clipped & Pinned
H&K Heckler & Koch
$179.95H&K G3/91 (7.62x51/.308) SEF Navy Style Trigger Housing - Clipped & Pinned New German-made Heckler & Koch grip housing comes in black polymer clipped and pinned, ready to drop on your HK 91, HKG3, PTR-91, or other HK .308 type build. Accepts...HKP-00513$179.95 -
On Sale
Harris Bipod Adapter - Picatinny
GG&G
Now: $14.95Was: $39.95Harris Bipod Adapter Made By GG&G Enables a Harris Bi-pod to attach to a mil-spec Picatinny rail. GG&G's AR-15 Harris Bipod Adapter is rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud, a...HKP-02307Now: $14.95Was: $39.95 -
HK Single Point Sling - ACU Digital Camo
HKP HK Parts
$29.95HKP Single Point Sling - ACU Digital Camo HK single-point bungee sling for use on all HK & other firearm applications. This super high-quality sling is a must-have for those who prefer operating with a single-point sling over the traditional 3-point...HKP-15041$29.95 -
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-M$24.95 -
HK MP5, G3, HK93 Flat Trigger - Skeletonized
HKP HK Parts
$68.95HKP 90 Series Flat Trigger - Skeletonized - USA The HK Parts skeletonized flat trigger for 90 series firearms offers improved control, reduced weight, and a modern look. Precision-machined from ordnance-grade billet steel with a QPQ nitride finish for...HKP-21580$68.95 -
HK VP9 A1, P30 A1 Magazine Floorplate - 9mm - 17 Round
H&K Heckler & Koch
$21.95H&K VP9/P30 A1 17 Round Magazine Floorplate Factory replacement floorplate for VP9 and P30 17 round magazines. Compatible with HK VP9/P30 A1 17 round magazines HK VP9/P30 15 & 17 round magazines Please Note: This magazine floorplate can be used...HKP-21979$21.95 -
Out Of Stock
Outer Impact HK USP M.R.A Red Dot Adapter
Outer Impact
$59.95Outer Impact HK USP M.R.A Red Dot Adapter The Outer Impact USP red dot adapter opens up a variety of sight options for the USP platform. Precision-machined from 7075 aircraft aluminum. Compatible With: HK USP Compatible Red Dot Sights (Mounting Screws...HKP-21624$59.95 -
Out Of Stock
HK MP5 to MP5SD Front End Conversion Kit
DTAC Dakota Tactical
$1,299.95Dakota Tactical HK MP5SD Front End Kit If you have wanted to convert that MP5 or SP5 to an SD but didn't know where to start, look no further. Our kit provides all necessary components (aside from suppressor) to do so. With a DTAC Cage and SD guard...HKP-21318$1,299.95 -
On Sale
HK V51 Backplate
HKP HK Parts
Now: $99.95Was: $167.95HKP V51 Backplate HK Parts brings you a long lost part that was no longer available till now. The Vector Arms V51 firearms was one of the most aclaimed PDW of its time but replacement parts have become difficult to source. We now take like new G3...HKP-21201Now: $99.95Was: $167.95 -
HK91, G3 Backplate, Incomplete
H&K Heckler & Koch
$29.95G3 Incomplete Backplate Each backplate is refinished and parkerized as issued to the German military. This refinished backplate comes with a threaded end to accept a threaded recoil rod stop screw. With a quick and easy removable recoil rod stop you will...HKP-20860$29.95 -
On Sale
Flare Gun - 26.5MM
AC-Unity
Now: $149.95Was: $169.95AC-Unity Flare Gun - 26.5MM The AC-Flare Gun is a modern state-of-the-art and highly durable tool to dispense 26.5mm flares or smoke grenades. The body of the pistol is made of a special polymer which is high impact and UV resistant. It can be...HKP-20792Now: $149.95Was: $169.95