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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HK German Sling Hook
H&K Heckler & Koch
$8.95H&K German Sling Hook New old stock HK German sling hook. Made from steel not the cheap aluminum or zinc offerings found elsewhere. Made in Germany. Great For HK sling projects and for spares. The...HKP-19433$8.95 -
HK MP5K, SP89, SP5K Folding Brace - 9mm - Polymer
SB Tactical
$119.99HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. This is current production with a polymer brace adapter. ***Please...HKP-21358$119.99 -
Out Of Stock
HK MP5, SP5 Locking Piece #27 - 90 degree
RCM
$39.95HK MP5, SP5 Locking Piece #27 - 90 degree Machined and properly heat treated from ordnance grade steel. A must have component for users running a suppressed set up or cycling a variety of ammunition...HKP-21334$39.95 -
HK MP5K, SP89, SP5K Vertical Foregrip - 9mm
H&K Heckler & Koch
$98.95HK German Factory MP5K & SP89, PDW Vertical "K" Grip The "K" Grip will also fit the MP5, HK94, and HK53 with the use of a K-Grip adapter (see below), all NFA rules apply. This uses the standard HK...HKP-00387$98.95 -
HK MP5 Optic Mount - Minimalist - Picatinny
HKP HK Parts
$97.95HKP HK MP5 Minimalist Picatinny Rail Optic Mount Our new Picatinny style optic mount is a game changer for those who want a minimalist look on their MP5 or MP5K. You can have a Picatinny rail without...HKP-21072$97.95 -
Holex Feeler Gauge Set - 20 Piece - German
HKP HK Parts
$14.95Holex Feeler Gauge Set - 20 Piece - German The perfect companion tool for all HK roller lock firearm owners. Each tool includes 20 feeler gauges from .05mm-1.0mm in .05 increments. To help users and...HKP-17212$14.95 -
HK Barrel Pin Retaining - 5mm - Standard Size
H&K Heckler & Koch
$9.95H&K HK Pin - Barrel - Retaining - 5mm - Standard Size Barrel Retaining Pin Each barrel pin is used for installing a new or replacement barrel. HK suggest using a new factory barrel pin when...HKP-00071$9.95 -
Armorer's Bench Block Tool
HKP HK Parts
$14.95HK Parts Armorers Puck Punch Bench Block Tool for all HK Firearms The HK armorers' puck punch bench block tool is standard issue at all HK armorers' courses. The purpose of the tool is to aid in...HKP-17133$14.95 -
HK VP9 Optic Plate #2 - Trijicon RMR, Holosun Swampfox - Red Dot Pistol Mount
H&K Heckler & Koch
$49.99Optics Plate #2 RMR - HK VP9, VP9L HK German steel optic plate for Triicon RMR patterned optics. Compatible With: HK VP9 OR, VP9 Tactical OR HK VP9L OR<HKP-19253$49.99 -
On Sale
HK MP5, MP5K Cocking Handle
HKP HK Parts
$19.09 - $29.95HKP MP5, MP5K Cocking Handle Our HK Parts US-made cocking handle, a precise replica of the German design. It seamlessly complements your other accessories, making it an essential addition to any...HKP-00653-M$19.09 - $29.95 -
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...HKP-02320$99.95 -
HK MP5 Magazine - 9mm - 40 Round
AC-Unity
$24.95AC-Unity 40 Round HK MP5 9mm Magazine ADD QUANTITIES TO CART TO SEE BULK PRICING DISCOUNTS The AC-Unity 30 round MP5 magazine is a lightweight, impact resistant and reliable magazineHKP-20156$24.95