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 CC9 Barrel - Threaded 1/2x28
RCM
$223.95RCM HK CC9 Barrel - Threaded 1/2x28 This high-quality threaded barrel is precision-engineered to fit the Heckler & Koch CC9, providing enhanced accuracy and reliable function for both competitive...HKP-22619$223.95 -
HK MP5SD Apparel - Hats, Patches, and Shirts
HKP HK Parts
$0.00HKP HK MP5SD Apparel and Patch Collection Represent your platform with the HK Parts MP5SD Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean,...HKP-22457-M$0.00 -
HK416, MR556 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$26.95H&K HK416, MR556 A4 Front Takedown Pin The HK416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it...HKP-21862$26.95 -
On Sale
HK MP5K Brace or Stock Adapter - Folding
HKP HK Parts / SB Tactical
Now: $67.99Was: $79.99SB Tactical HK MP5K Folding Brace/Stock Adapter Factory SB Tactical adapter for folding pistol brace. Aluminum with hard coat anodize for the ultimate finish. Features: Seamless styling adds...HKP-21413Now: $67.99Was: $79.99 -
HK MP5, MP5K Telescopic Buttpad
B&T Brugger & Thomet
$190.00B&T HK MP5, MP5K Telescopic Buttpad - Brace Conversion B&T replacement stock buttpad. Also used to convert B&T's telescopic brace to a stock (BT-200601) Compatible With:HKP-21384$190.00 -
HK416, MR556 Flash Hider - A5 4-Prong Style - Threaded 1/2x28
HKP HK Parts
$39.95HKP (5.56x.223) A5 4 Prong Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and nitrided for longevity. Machined correctly to reduce tuning fork noise. Counts as one US...HKP-21275$39.95 -
On Sale
HK 90's Series Compression Rod - Titanium
HKP HK Parts
Now: $20.97Was: $29.95Compression Rod - 90's Series - Titanium The H&K burst trigger pack compression rods and compression rod springs are the foremost wear/breakage components in burst packs. This replacement compression...HKP-20887Now: $20.97Was: $29.95 -
HK G36K, G36C Rail - Side
HKP HK Parts
$24.95HK Aftermarket G36K/G36C Side Rail For Handguard This will fit the sides (left or right) of the forearm on the G36K and G36C forearms. Comes with all mounting hardware. Each rail is sold individually.HKP-00273$24.95 -
HK VP9, P30, USPC, P2000 Magazine Follower - 9mm
HKP HK Parts
$29.95HKP HK Parts 9mm Magazine Follower for HK VP, HK P30, HK USPC, HK P2000 A great replacement item for the stock follower. Made from aircraft-grade black Teflon hard coat anodized aluminum CNC...HKP-20594$29.95 -
On Sale
HK MP5, SP5 Universal Clipping and Pinning Service
USA
Now: $134.96Was: $149.95HK Clip and Pin Service for Universal HK SP5 and HK MP5 At HK Parts we offer our own HK trigger housing clip and pin services. No one does a better job with quicker turn around then we do. We will...HKP-20472Now: $134.96Was: $149.95 -
On Sale
HK416, MR556 Super Modular Handguard - 10.5" - M-LOK - DDC - Geissele
Geissele
Now: $472.46Was: $524.9510.5" HK416 Handguard M-LOK The Super Modular Rail HK416 MK15 M-LOK was designed to replace the standard rail on an HK416 or MR556 weapon platform. The rail system utilizes the stock HK barrel nut,...HKP-19805Now: $472.46Was: $524.95 -
On Sale
HK P30, VP9 Magazine Extension Kit - +10
HKP HK Parts
$41.41 - $64.95HKP + 10 HK P30, VP9 MagaHKP-19455-M$41.41 - $64.95