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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HK91, G3, HK53, HK93 Cocking Lever Elbow Spring
H&K Heckler & Koch
$5.74New Style Cocking Handle Lever Spring - German This is the latest HK German spring design with the factory HK anti-corrosion plating applied. The factory HK springs last longer and is more tolerant to corrosion. A perfect upgrade for your older...HKP-00348$5.74 -
Heckler & Koch No Compromise Decal
H&K Heckler & Koch
$1.95Heckler and Koch No Compromise Decal Show your support for the HK 416 weapon System. HK shows no compromise as the worlds finest firearms manufacture the world over! Specifications: Size: 4 in. Circle WeatherproofHKP-17157$1.95 -
On Sale
HK USP, P30, HK45 Hammer Spring - Reduced Power - 11 lb.
Lazy Wolf
Now: $8.95Was: $9.95Lazy Wolf HK Reduced Power Hammer Spring - 11 lb. An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG...HKP-18147Now: $8.95Was: $9.95 -
HK90 Series Cocking Handle and Front Sight Roll Pin
H&K Heckler & Koch
$1.95H&K Front Sight Tower & Cocking Handle Pin Front sight tower roll pin for all HK 90 series front sights as well with some other applications. Compatible With: HK MP5, SP5 HK MP5K, SP5K HK91, G3 HK33, HK53, HK93HKP-00096$1.95 -
Out Of Stock
HK91, G3, CETME Receiver Flat with Weldment Set
PTR
$189.95HK91, G3, PTR, CETME Flat & Weldment Combo - PTR Made by PTR91 on original HK tooling using factory specifications and a properly stamped receiver ready to roll and build. No FFL transfer is required as this is an un-folded flat. Compatible...HKP-02086$189.95 -
On Sale
HK Vertical Foregrip - Long - Picatinny
HKP HK Parts
Now: $19.95Was: $24.95HKP Vertical Grip - Picatinny Mount - Long This rock-solid grip is a must-have for anyone who uses a vertical grip. This is the only vertical grip that offers a built-in aluminum locking block for ease of attachment security. Features: Attaches in...HKP-15296Now: $19.95Was: $24.95 -
On Sale
HK USP, P30, HK45 Hammer Spring - Reduced Power - 10 lb.
Lazy Wolf
Now: $8.95Was: $9.95Lazy Wolf HK Reduced Power Hammer Spring - 10 lb. An exciting new offering as a joint collaboration from the widely renowned pistol smith Lazy Wolf Guns & HK Parts! This custom spring was designed exclusively by master trigger smith Rick Holm at LWG...HKP-18132Now: $8.95Was: $9.95 -
On Sale
HK90 Series Mag Paddle Bushing with Pin for Semi Builds
DTAC Dakota Tactical
Now: $7.95Was: $9.89DTAC Mag Paddle Bushing With Pin For Semi-Builds This part is made 100% in the US from 17-4 stainless steel. Latest production with patent pending anti-binding enhancement upgrade. Accurate tolerance for easy movement with minimal play. It has an...HKP-02194Now: $7.95Was: $9.89 -
HK Velcro Patch
H&K Heckler & Koch
$4.95Factory HK Black & Red Patch With Full Velcro Back Wear your pride in HK with this HK logo patch. Embroidered HK patch with a full velcro backing for fitment on range bags, hats, clothing, etc. Specifications: 3.5" L x 2.5" HHKP-17322$4.95 -
On Sale
HK416 Pistol Brace and Stock Adapter - .22LR - Picatinny
HKP HK Parts
Now: $49.95Was: $62.95HKP HK Parts HK 416 .22 Picatinny Pistol Brace and Stock Adapter CNC billet machined in the USA from one piece of aircraft grade aluminum. Each adapter was fitted for optimal use on the HK 416 .22 Pistol models with a seamless fit. Each unit has a left...HKP-19742Now: $49.95Was: $62.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Hex Buffer Screw - Front
HKP HK Parts
Now: $0.55Was: $0.69Enhanced Hex Style Buffer Screw New upgraded hex head style front buffer screw. Each buffer assembly uses 2 of these screws to affix the buffer to the back plate and central stock section. The old style buffer screws were used the older slotted head and...HKP-17883Now: $0.55Was: $0.69 -
HK MP5, SP5 A2 Fixed Buttstock
H&K Heckler & Koch
$189.95HK German MP5, SP5 & HK94 - A2 Fixed Buttstock Compatible With: HK MP5, 94, HK SP5 MP5SD MP5 F MP5 40/10 (buffered stock would be optimal) Zenith Z5-RS, Omega MP5, DT54, TPM MP5, etc. MAC-5 clones may require custom fitment. Modified...HKP-00169$189.95