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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On Sale
HK MP5K Folding Stock With Direct Fit Adapter
MI Midwest Industries
$267.72 - $419.95HK MP5K Folding Stock With Direct Fit Adapter The Midwest Industries Alpha folding stock paired with the HK Parts picatinny rail adapter offers unparalleled versatility. Adjust your length of pull,...HKP-21514-M$267.72 - $419.95 -
B&T MP9, TP9 Case
B&T Brugger & Thomet
$199.95B&T Carrying Case and MP9 and TP9 B&T factory issue MP9 and TP9 carrying cases. These cases are no longer in production or available from any other vendors. A limited quantity is available. Get...HKP-21084$199.95 -
HK UMP, USC Hammer Spring - Right - US
USA
$9.95HK UMP & USC Right Side Hammer Spring For Lowers - USAHKP-19557$9.95 -
HK UMP, USC, G36 Handstop - Complete
HKP HK Parts
$49.95Hand Stop Complete - USA - UMP, USC & G36 Compatible With: USC UMP G36K G36C <HKP-19236$49.95 -
HK G36, HK SL8 Bolt Catch USF
USA
$14.95HK G36 & SL8 Bolt Catch On AR-15 systems this would be similar to a cam pin. Compatible With: G36, G36K, G36C Sl8 variantsHKP-19122$14.95 -
B&T USW A1 Complete Folding Stock Assembly
B&T Brugger & Thomet
$162.45B&T USW A1 Complete Folding Stock Assembly Swiss B&T manufactured tactical folding stock assembly. Includes polymer stock and all four hardware pieces as shown. Compatible With:HKP-18356$162.45 -
HK UMP Magazine Locking Plate - .45 ACP - US
USA
$6.95HK UMP .45 Magazine Locking Plate Made in the USAHKP-20136$6.95 -
HK German Ambidextrous Sling Pin Replacement O-Ring
H&K Heckler & Koch
$5.95H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common...HKP-19985$5.95 -
Out Of Stock
HK45 Recoil Rod Absorber Bushing
H&K Heckler & Koch
$9.95HK 45 Recoil Rod Absorber Bushing This part is a common wear and replacement part and a must-have for spare parts. Compatible With:HKP-02269$9.95 -
HK Mark 23 Barrel - .45 ACP - Threaded 16x1 RH
H&K Heckler & Koch
$589.95H&K Mark 23 .45 ACP Barrel - Threaded 16x1 RH A great replacement item for a now out-of-production pistol. New HK German mark 23 barrel threaded with the factory correct 16x1 RH thread. Get that...HKP-01038$589.95 -
HK VP9, P30, HK45C Night Sight Set - Green
Trijicon
$142.95Trijicon HK VP/45C/P30 Night Sight Set - Green Trijicon Bright & Tough Night Sights are 3 dot iron sights that increase night-fire shooting accuracy by as much as five times over conventional sights...HKP-01611$142.95 -
HK P30 Series Grip Shell - Left - Large
H&K Heckler & Koch
$19.95Heckler and Koch Large Left Grip Shell for HK P30 Series Compatible with: P30HKP-01575$19.95