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 MP5, HK90 Series Trigger Box - Full Auto SEF - USED
H&K Heckler & Koch
$89.95Heckler and Koch USED Full Auto SEF Trigger Box for the HK90 Series UNIT QUALITY MAY VARY - SEE PHOTOS FOR EXAMPLE OF CONDITION RANGE Used genuine HK full-auto trigger box for HK90 seriesHKP-22156$89.95 -
HK CC9 Magazine Catch
H&K Heckler & Koch
$16.95Heckler and Koch Magazine Catch HK CC9 Genuine HK magazine catch for the CC9 pistol engages and locks the magazine in place while allowing for the quick release duringHKP-22106$16.95 -
HK416 A5, MR556 A4 Gas Block Spring
H&K Heckler & Koch
$19.95HK Heckler and Koch HK416 A5, MR556 A4 Gas Block Spring German-made gas block spring for the HK MR556 A4 and HK416 A5. Compatible With: MR556 A4HKP-22060$19.95 -
On Sale
M-Lok Optic Mount - Offset Light
Magpul
Now: $33.26Was: $36.95Magpul M-Lok Offset Light / Optic Mount - Aluminum The M-LOK Offset Light/Optic Mount, Aluminum provides the user with an ambidextrous platform to mount weapons lights or optics at both the 11 and 1...HKP-21875Now: $33.26Was: $36.95 -
On Sale
HK G36 Magazine Spring - 30 Round
HKP HK Parts
Now: $5.07Was: $7.95HKP HK G36 Replacement 30 Round Magazine Spring A high-quality replacement spring designed to restore optimal performance to your G36 magazine. Built to withstand frequent use, this component ensures...HKP-21830Now: $5.07Was: $7.95 -
B&T USW-G17 Conversion Kit
B&T Brugger & Thomet
$550.00B&T USW-G17 Conversion Kit Upgrade your Glock 17 with the B&T USW-G17 conversion kit, transforming it into a Universal Service Weapon for enhanced stability and control. This kit includes a folding...HKP-21733$550.00 -
On Sale
HK VP9, VP40 Compensator - Quick Detach - US - BLEMISHED
HKP HK Parts
Now: $84.71Was: $149.95HKP Comp Weight™ HK VP9, VP40 Quick Detach Compensator - BLACK - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART...HKP-21080-BNow: $84.71Was: $149.95 -
On Sale
HK P2000 Compensator for Threaded Barrel
HKP HK Parts
Now: $101.21Was: $189.95HKP HK P2000 Compensator for Threaded Barrel The HK Parts P2000 Compensator will add a sleek and tactical look to your P2000. With the quick and easy addition of our compensator you will add plenty...HKP-20879Now: $101.21Was: $189.95 -
Out Of StockOn Sale
HK SP5 Stock with HKP Adapter
HKP HK Parts / GSG9
Now: $189.95Was: $259.95GSG9 US Folding Stock with HK Parts Adapter for HK SP5 GSG9 US folding stock paired with an HK Parts SP5 adapter. Configured as a direct-fit stock assembly for the SP5 platform. Specifications:HKP-20662Now: $189.95Was: $259.95 -
Out Of Stock
HK VP Series F3 Trigger - Full Flat Face - Safety Tab Kit - Red
Lazy Wolf
$19.95F3 Full Flat Face VP Series Trigger Tab, Spring Set from Lazy Wolf Guns - Red Replacement trigger safety tab, spring, and roll pin kit as pictured for the HK VP9 series of LWG triggers. Ideal if you...HKP-20096$19.95 -
Out Of Stock
B&T TP9, MP9, TP380 Stock Conversion Kit
B&T Brugger & Thomet
$147.95Stock Conversion Kit - TP9, MP9, TP380 Converts B&T's telescopic brace into a telescopic stock. Compatible with B&T part number BT-20522 for TP9, TP380.HKP-19128$147.95 -
Out Of Stock
HK G36, SL8 Handguard With Heat Shield
H&K Heckler & Koch
$115.99HK G36 & SL8 Forearm With Heat Shield New HK German G36 & HK SL8 handguard with heat shield & bipod attachment & sling loop point. A drop in part for your HK G36 or SL8 rifle.HKP-00271$115.99