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, SP89, SP5K Stock or Brace Adapter - AR - 9mm
HKP HK Parts
Now: $73.28Was: $114.95HKP MP5K/SP89/SP5K 9mm AR Brace/Stock Adapter Each AR stock, brace adapter is made from a solid billet of CNC machined aircraft grade aluminum. Properly buffered with factory correct H buffers to...HKP-17138Now: $73.28Was: $114.95 -
HK MP5 9mm Grenade Launcher Attachment - 3-Lug
H&K Heckler & Koch
$149.95H&K MP5 9mm Grenade Launcher Attachment - 3-Lug This is a rare part and hard to come by. Perfect for MP5 9mm series. SpecifiHKP-16975$149.95 -
MP5SD Front Sight Tower
USA
$49.95MP5SD Front Sight Tower New US Made MP5SD Front Sight TowerHKP-15699$49.95 -
HK51K Parts Kit - .308
HKP HK Parts
$2,099.95HK51K Parts Kit - 7.62 / .308 Previously only achievable by a handful of specialized builders, HK Parts brings the rare 51K to life through our comprehensive parts kit. Our 51K parts kit features a...HKP-22876$2,099.95 -
HK MP5 Slip Trip - Super Safety
War Hammer Armaments
$98.95War Hammer Armaments Slip Trip for HK MP5 Super Safety Trigger Groups War Hammer Armaments slip trip for MP5 Super Safety setups. Required to make a Super Safety work with the MP5 platform. Precision...HKP-22829$98.95 -
HK MP5, AP5 Magazine Catch Push Button
MKE
$6.95HK MP5, AP5 Magazine Catch Button Push button for magazine catchCompatible with: HK MP5, SP5 HK MP5K, SP5KHKP-22548$6.95 -
HK CC9 Magazine +3 Extension Kit - 9mm
HKP HK Parts
$49.95HKP HK CC9 +3 Magazine Extension +3 magazine extension for the HK CC9. This low-profile base pad increases a standard 12-round CC9 magazine to 15 rounds. Machined in the U.S. from aircraft-grade...HKP-22488-M$49.95 -
HK91, G3 Magazine - 15 Round - Alloy
H&K Heckler & Koch
$44.95Heckler and Koch HK91, G3, MSG90 15-Round Alloy Magazine Manufactured by Heckler & Koch and converted to 15-round capacity in the United States using a U.S.-made floorplate. Counts as one U.S.-made...HKP-22427$44.95 -
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...HKP-22366$227.95 -
HK Mark 23 Thread Protector - Knurled - 16x1 RH
HKP HK Parts
$19.95HKP .45 ACP Thread Protector - Threaded 16x1 RH for HK Mark 23HKP-22286$19.95 -
On Sale
HK P30 Magwell - Ultra Low Profile
HKP HK Parts
$38.22 - $59.95HKP HK Parts Tactical Low Profile Magwell for HK P30 The smallest, lowest profile magwell available for the HK P30, now with a fully functional funnel for quicker, smoother reloads. PHKP-22165-M$38.22 - $59.95 -
HK CC9 Firing Pin Spring
H&K Heckler & Koch
$5.95H&K CC9 Firing Pin Spring Manufactured by H&K, this firing pin spring for the H&K CC9 pistol applies consistent tension to the firing pin, ensuring reliable ignition.HKP-22138$5.95