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 Parts Kit - RCM Barrel - PTR Receiver Flat
H&K Heckler & Koch
$588.95HK German G3 .308/7.62 X 51mm Surplus Parts Kit, Receiver Flat - RCM Barrel Finally, after more than 4 years of searching the globe we have HK German Surplus G3 parts kits available to offer. Each parts kit comes complete with all parts from a functional...HKP-16579$588.95 -
HK MP5, AP5 Retractable Stock
MKE
$314.95MKE HK MP5, AP5 Stock - Retractable The missing piece to add the iconic appearance to your MP5-AP5 Clone. The collapsible design offers a custom length of pull for optimal comfort and control, while the easy-to-install mounting system offers dependable,...HKP-21183$314.95 -
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 -
Out Of Stock
Tailhook Mod 1C Brace
Gear Head Works
$164.95Gear Head Works Tailhook Mod 1C The Patented Tailhook MOD 1C is 30% lighter and 30% more compact than or standard Mod 1. With a profile similar to the SCW Tailhook it truly is the most compact pistol brace on the market today. At less than an inch thick,...HKP-19655$164.95 -
HK P30 Series Light Trigger Return Spring
H&K Heckler & Koch
$7.95Light Trigger Return Spring This spring is a popular choice for those who opt for custom trigger pulls and spring conversions. It's also known as the "light" trigger return spring for the P30 series of pistols. Converts a V2 heavy LEM to a light V1...HKP-01801$7.95 -
HK91, G3 Receiver Flat - US Made
PTR
$99.95HK G3, 91, PTR & CETME Flat - PTR Made by PTR with original HK tooling using factory specifications and a properly stamped receiver. No FFL is required as this is an unfolded flat that ships directly to the customer. This US made receiver flat...HKP-02320$99.95 -
On Sale
HK416, MR556 Magazine - 30 Round - Maritime
H&K Heckler & Koch
Now: $69.95Was: $83.95Heckler and Koch HK416 and HK MR556 30-Round Maritime Magazine - German HK The HK 416 and HK MR556 magazines will also fit all AR15/M16 variants. Designed to provide optimum ammunition feeding for any M16/M4/AR15-type weapon. Originally developed by HK...HKP-00487Now: $69.95Was: $83.95 -
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 -
HK Locking Roller Pin - Bolt Head
H&K Heckler & Koch
$9.95HK Heckler & Koch HK Pin - Roller - Locking - Bolt Heads HK roller retainer pin or clamping sleeve (holds roller retainer plate in place). Each retainer pin works with all roller retainer plates & springs. All 3 types including oval-shaped...HKP-00066$9.95 -
On Sale
KCI Glock 26-Round.45 ACP Magazine
Now: $9.95Was: $22.95KCI Glock 26-Round.45 ACP Magazine Compatible With: Glock .45 ACP double stack models 21 & 30 Features: Hardened steel insert encased in high-tech polymer (fully metal lined) Please Note: Like many new magazines, these have a stiff spring from...HKP-02298Now: $9.95Was: $22.95 -
Out Of Stock
HK VP9SK, P30SK Magazine - 17 Round
H&K Heckler & Koch
$49.95H&K 17 Round HK VP9SK/P30SK 9mm Magazine New factory HK 17 round magazine for the VP9SK & P30SK. HK's magazine is made to their specifications and tolerances using high quality materials that provide perfect fit, durability and...HKP-20601-M$49.95 -
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