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
HK33, HK53, HK93 Extractor
H&K Heckler & Koch
$67.95H&K 93, 53, & 33 (5.56/.223) Extractor A great replacement for your HK or clone. A high wear item that can become worn, chipped, and non-relaible. A must have spare part. German HK factory fresh production.HKP-00189$67.95 -
HK SP5K, MP5K Cocking Tube Support Spring - Reverse Stretch
H&K Heckler & Koch
$6.95Heckler and Koch HK SP5K, MP5K Reverse Stretch Cocking Tube Support Spring A great spare to have on hand as this part can become worn and be lost. The cocking tube support spring applies pressure to the cocking tube detent to enable to the detent to lock...HKP-17873$6.95 -
On Sale
HK MP5K, SP5K Pistol Stabilizing Brace - SBA3 - 5 Position Adjustable
SB Tactical
Now: $228.95Was: $269.95SBA3 - 5 Position Adjustable Stabilizing Brace - MP5K / SP5K The perfect addition to your firearm with the ability to adjust length with its 5-position adjustable buffer tube. Dramatically enhances versatility, and features a minimalist design with an...HKP-20277Now: $228.95Was: $269.95 -
On Sale
HK MP5 Cocking Handle
AC-Unity
Now: $19.95Was: $24.95AC-Unity HK MP5 Cocking Handle Compatible With: MP5, 94, MP5SD MP5K, SP89, SP5K Zenith 9mm firearms, POF Other MP5 clones or custom HK 9mm buildsHKP-20158Now: $19.95Was: $24.95 -
Out Of Stock
HK417, MR762, G28 Buttstock - Adjustable
H&K Heckler & Koch
$347.95 - $425.95H&K HK MR762/417/G28 Adjustable Buttstock The HK G28 adjustable stock upgrade is to be used on the MR762, HK 417 stocks with the G28 buffer tube and G28 castle nut. The G28 stock is fully adjustable for length of pull as well as the cheek...HKP-16721-M$347.95 - $425.95 -
HK UMP, USC Firing Pin Assembly - Complete
H&K Heckler & Koch
$82.95HK German USC & UMP Firing Pin Assembly Complete A great spare to have on hand as this item is a hard-to-find replacement part. Compatible With: USC 45 UMP 45 UMP 40 UMP 9mm ALL USC Conversions ALL UMP MG'sHKP-00609$82.95 -
On Sale
HK33, HK53, HK93 Locking Piece # 7 - 55 Degree
RCM
Now: $41.95Was: $49.95RCM HK 93/53/33 # 7 Locking Piece 55 Degree New 55 Degree #7 Locking Piece for the HK 93, 33, C93 & V93 rifles. Made in the USA from ordnance grade steel, heat treated and made to last. A perfect upgrade for your well used or questionable locking...HKP-16556Now: $41.95Was: $49.95 -
HK MP5 Magazine Clamp - .40 S&W, 10mm
H&K Heckler & Koch
$129.95H&K Heckler and Koch New HK German Magazine Clamp for HK MP5 .40 S&W, 10mm, .357 SIG Fits all MP5 40,10 Magazines. Holds two magazines together for immediate access.HKP-00431$129.95 -
HK MP5, G3, HK33, PTR, SP5 Night Sight Set
Meprolight
$109.00Meprolight HK MP5, G3, 33, PTR, SP5 Night Sight Set Meprolight produces a bright green night sight available for Heckler & Koch sub guns and rifles. These tritium night sight inserts are a no-brainer for a quicker, more accurate point-and-shoot...HKP-02564$109.00 -
HK MP5, MP5K Bolt Head, Complete - F-Style
H&K Heckler & Koch
$499.95MP5 & HKSP5, MP5K & SP5K F Bolt Head Complete - HK German This part will fit all HK 9mm rifles and MP5 pistols. This is the latest HK production and generation of bolt heads available. These are rare and HK now considers them restricted...HKP-00130$499.95 -
On Sale
Binary Safety Selector Set - Ambidextrous - Extended
HKP HK Parts
Now: $71.95Was: $89.95HKP Ambi ESSL Housing Franklin Armory Binary Selector Set - Levers Only HK Parts extended safety selector Selector Lever Set, expertly modeled after the HK Ambi Style Selector Lever. This premium product is designed to integrate seamlessly with the...HKP-21616-MNow: $71.95Was: $89.95 -
Out Of Stock
HK P30 Barrel - 9mm - 4.45" - Threaded 1/2x28 RH
RCM
$225.00RCM HK P30 9mm Barrel - Threaded 1/2x28 RH Each barrel is finely and painstakingly made from ordnance grade steel, heat treated and finished inside and out in the ultra- desirable nitride finish. This is the finest threaded replacement barrel available...HKP-20824$225.00