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 MP5 Magazine Follower Bolt Catch Screw - Threaded - .40 S&W, 10mm
H&K Heckler & Koch
$34.95Heckler and Koch Threaded Bolt Catch for Magazine Follower for your HK MP5 40,10 This is the small threaded screw that fits into the bolt-hold-open axle and makes contact with the magazine follower to activate the bolt-hold-open. A small but...HKP-00454$34.95 -
HK MP5 Locking Roller -2 - .40 S&W, 10mm
H&K Heckler & Koch
$19.95H&K Heckler and Koch -2 roller HK German for HK MP5 40/10 Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per...HKP-00336$19.95 -
HK MP5 Extractor - .40 S&W, 10mm
RCM
$34.95RCM US Made Extractor for HK MP5 .40 S&W and 10mm This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.HKP-01969$34.95 -
HK MP5K, SP89 Trigger Housing - FBI Style - 2 Position Pictogram 0,1 Pictogram - Clipped and Pinned - 9mm
H&K Heckler & Koch
$245.95H&K MP5K/SP89 9mm 2 Position (0,1 Pictogram) FBI Style Trigger Housing - Clipped & Pinned This clipped and pinned trigger housing is modified to fit MP5K or SP89 housings. It accommodates all HK German ambidextrous trigger packs and selector...HKP-00402$245.95 -
HK MP5K, SP89, SP5K Handguard - KeyMod
HKP HK Parts
$89.95HK MP5K, SP89 Low Profile Forearm KEYMOD The Key MOD tactical hand guard easily installs on your firearm with minimal effort and locks up solid. No fitting required. Designed from the ground up by roller lock & HK enthusiasts with your shooting needs...HKP-17177$89.95 -
HK MP5 Barrel - 9mm - Threaded 1/2x32 with 3 Lug
B&T Brugger & Thomet
$449.95B&T HK MP5 9mm Barrel - Threaded 1/2x32 - 3-Lug New from B&T Switzerland, this cold hammer-forged (CHF) and nitrided barrel is manufactured to exact HK factory specifications exclusively for MP5 models. B&T, a trusted partner of H&K...HKP-17956$449.95 -
HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style
MFI
$167.95HK MP5, SP5 3-Lug Faux Suppressor - MP5SD Style MFI replicated the classic MP5SD suppressor appearance. Designed to fit any factory spec 3-lug barrel and a perfect match with the HKP MP5 SD-style handguard conversion. This combination delivers the...HKP-22440$167.95 -
HK G3, HK33, HK93 Bayonet with Scabbard - NOS
H&K Heckler & Koch
$227.95HK G3, HK33, HK93 Bayonet with Scabbard - New Old Stock Genuine German HK military surplus bayonet in original wrap. These are the 12-groove version of the popular military bayonet. Scabbard is included. Compatible With: HK G3 HK91 HK33 HK93HKP-22366$227.95 -
On Sale
CZ Scorpion Binary Trigger - Curved - BFSIII - BLEMISHED
FA Franklin Armory
Now: $349.99Was: $495.95Franklin Armory CZ Scorpion - BFSIII - Binary Trigger - Curved - BLEMISHED DAMAGED PACKAGING - PRODUCT UNAFFECTED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL...HKP-18881-BNow: $349.99Was: $495.95 -
HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip
HKP HK Parts
$189.95HK MP5 Metal Trigger Housing Conversion Kit - AC Unity Grip This kit includes everything you need to convert a polymer MP5 trigger group a robust metal housing. Simply use your existing semi-auto SEF trigger pack to complete the conversion. This...HKP-22321$189.95 -
On Sale
HK MP5, AP5 Front Sight Tower
MKE
Now: $37.46Was: $49.95MKE AP5, MP5 Front Sight Tower The front sight tower is a critical component for a perfect build. The MKE front sight tower is great option for new builds or replacement of damaged units. Compatible With: Century Arms AP5 Century Arms AP5K/M Clones with...HKP-22220Now: $37.46Was: $49.95 -
Out Of Stock
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 during reloads. Compatible With: CC9HKP-22106$16.95