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 MP5, HK94 Grip Adapter - K Style
E&L MFG
Now: $39.97Was: $49.95HK Vertical K Grip Adapter For HK MP5 & HK94 (Adapter Only) This is the adapter needed to add an MP5K K grip to your HK94, MP5, or clone.HKP-00175Now: $39.97Was: $49.95 -
On Sale
Uzi Sling - Used
Other
Now: $20.59Was: $24.95Uzi Sling - Used Original IMI sling used complete with steel buckle, two leather loops and steel tip keepers. Once they're gone, they're gone for good. Compatible With: Action Arms Uzi MicroHKP-21562Now: $20.59Was: $24.95 -
On Sale
HK MP5K Dual Folding Stock and Adapter
HKP HK Parts / Strike Industries
$203.97 - $319.95Strike Industries Dual Folding Stock with HKP MP5K Adapter The Strike Industries Dual Folding Stock paired with the HKP MP5K picatinny adapter is one of the best options on the market for those...HKP-21428-M$203.97 - $319.95 -
On Sale
HK416 Dual Folding Brace With Direct Fit - .22LR
HKP HK Parts / Strike Industries
Now: $314.96Was: $349.95HK416 Dual Folding Brace With Direct Fit - .22LR The Strike Industries Dual Folding Brace paired with the HKP 416 .22LR picatinny adapter is one of the best options on the market for those looking...HKP-21409Now: $314.96Was: $349.95 -
HK MR556 Receiver Take Down Tool
H&K Heckler & Koch
$19.95H&K HK MR556 Receiver Take Down Tool This part is the tool used to tighten down the stock movement on the E1/E2 stock. Each tool will be stored in the rear of the E1/E2 stock. Compatible With:HKP-02653$19.95 -
On Sale
HK G36, SL8 Recoil Buffer - Factory - US
USA
Now: $15.26Was: $16.95HK G36 Or SL8 Factory Recoil Buffer A must have spare part as the buffer is prone to wear and breakage. Compatible With: All HK G36 models SL8 models <HKP-18541Now: $15.26Was: $16.95 -
HK91, G3, HK33, HK53, HK93 Wood Stock Buttpad - Rubber - Enhanced
HKP HK Parts
$29.95Butt Pad For Wooden Stocks - Enhanced Rubberized Buttpad The enhanced rubberized butt pad is a direct replacement to a standard fixed stock butt pad that can be replaced and upgraded in seconds. This...HKP-17667$29.95 -
HK91, G3, HK33, HK53 HK93 Tac Latch
$69.95HK Rifle Tac Latch for HK91, G3, HK93, and HK33 HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto versions eliminated this...HKP-02791$69.95 -
On Sale
HK MP5K, SP89, SP5K Barrel - 5.85" - Threaded 1/2x28 with 3 Lug
B&T Brugger & Thomet
Now: $315.00Was: $350.00B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New...HKP-17894Now: $315.00Was: $350.00 -
Out Of StockOn Sale
HK MP5, HK90 Series Hammer Axle
MKE
Now: $1.98Was: $2.99MKE HK MP5 Hammer Axle MKE Hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns...HKP-22227Now: $1.98Was: $2.99 -
HK MP5SD Bolt Group, Complete - 115 Degree LP - 9mm
RCM
$499.95Complete Bolt Group - RCM - HK MP5SD 9mm Ideal to replace out-of-spec, worn, or broken bolt groups or for that custom build. Assembled with the ultra-desirable 115 LP for a true drop-in replacement...HKP-19665$499.95 -
HK91, G3 A2 Fixed Buttstock - Jungle Green - Used Excellent
H&K Heckler & Koch
$36.95HK Heckler and Koch Fixed Stock in Jungle Green - Used Excellent for HK91, G3 7.62x51/.308 Handpicked best condition available. Comes with matching buttpad. Ready to install on your HK or clone rifle...HKP-18497$36.95