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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HK23E, HK13E Firing Pin
H&K Heckler & Koch
$109.95H&K 23E/13E (5.56/.223) Factory German Firing Pin New HK23E & HK13E factory German firing pin. These firing pins are no longer in production from HK. We have a limited number available and once they...HKP-00820$109.95 -
Out Of Stock
PTR 32 Complete Bolt Head - 7.62x39 - US Made
$199.95PTR 32 (7.62x39) Complete Bolt Head - US Made This item is a complete bolt head using a combination of new HK German and new US-made Parts. Bolt Head counts as one US-made compliance part for the...HKP-02280$199.95 -
HK33, HK53, HK93, HK91, G3 PRS Extended Butt Pad
Magpul
$15.95Magpul HK 91/G3 (7.62x51/.308) PRS Extended Butt Pad Replaces standard butt pad and adds 1/2" to the overall length of the PRS stock. This part also adds slightly more cushioning, as it has more...HKP-00843$15.95 -
HK91 Handguard - Carbine Length - M-LOK
AIM
$64.95HK 91, PTR RIFLE LENGTH HANDGUARD - M-LOK This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all M-LOK accessories. Superior ergonomics and simple,...HKP-18177$64.95 -
Out Of Stock
HK MP5 A2 Fixed Buttstock - USED
H&K Heckler & Koch
$149.95H&K Heckler & Koch Used A2 Rear Buttstock for HK MP5 Factory German MP5 A2 buttstock in excellent condition, ready to drop in. These stocks feature authentic date codes for those seeking a classic...HKP-00680$149.95 -
Out Of Stock
HK XX Marked 9mm Strutted Hammer
H&K Heckler & Koch
$159.95HK XX Marked 9mm Strutted Hammer Compatible With: MP5, 94, SP5 MP5K, SP89, SP5K MP5 40, MP5 10<HKP-00148$159.95 -
On Sale
HK MP5, MKE AP5 Bolt Head - Stripped - GUNSMITH SPECIAL
Other
Now: $52.46Was: $149.95Turkish Contract HK MP5, MKE AP5 Stripped Bolt Head - GUNSMITH SPECIAL VARYING CONDITION SHOWN - SOLD INDIVIDUALLY Please Note: Will require work beHKP-99372Now: $52.46Was: $149.95 -
On Sale
HK MP5, SP5 Handguard - Slimline Style - GUNSMITH SPECIAL
HKP HK Parts
Now: $11.99Was: $27.95MKE AP5/MP5 Slimline Handguard - GUNSMITH SPECIAL HOLES DO NOT ALIGN - NEEDS MODIFICATION THIS PART IS SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL.HKP-22222-BNow: $11.99Was: $27.95Out Of Stock
Compact Vertical Foregrip with Hand stop - M-LOK
JMK
$88.95Compact Vertical Foregrip with Hand stop - M-LOK The JMK Vertical Foregrips are ideally suited for applications with restricted space. Equipped with a rapid, straightforward M-LOK attachment system,...HKP-22406-M$88.95
HK91, G3 Backplate Assembly - Surplus
FMP HK CONTRACT
$14.95FMP HK91, G3 Backplate Assembly - Used/Surplus G3 surplus backplate assembly manufactured by FMP on HK tooling. Compatible With: HK G3, HK91HKP-22374$14.95
HK MP5, MP5K Barrel Flute Cleaning Brush - .40 S&W, 10mm
HKP HK Parts
$24.95HKP HK Parts Cleaning Brush - Barrel Flute - 10mm / .40 S&W This is a must-have brush to keep the flute clean and the firearm running the way it should. Compatible With: MP5 10mHKP-22318$24.95
HK MP5, AP5 Front Sight Tower
MKE
$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...HKP-22220$49.95