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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Sling Snap Hook 1" - Universal
USA
$4.95Snap Hook 1" This is a 1" HK-style snap hook for sling or other custom projects. We also offer 1.25" HK sling hooks, as these are great spare parts to have on hand.HKP-00730$4.95 -
HK MP5/SP5 9mm SEF Universal Trigger Housing - Clipped & Pinned - USED
H&K Heckler & Koch
$99.95H&K MP5/SP5 9mm SEF Universal Trigger Housing - Clipped & Pinned - USED A one size fits all approach for the MP5 and SP5 style semi-auto shelf. This is the best option if you have a MP5 receiver or a SP5. You can easily swap the lower trigger...HKP-21346$99.95 -
HK MP5 Optic Mount - RMR - Rear Sight
HKP HK Parts
$97.95HK MP5- RMR Optic Mount: The mounting solution to properly mount your RMR directly to the rear sight base on an MP5 or any other receiver that utilizes the same style rear sight base. The mount is the perfect height to co-witness your RMR with your...HKP-20506$97.95 -
HK P30, P30L Trigger Return Spring - Heavy
H&K Heckler & Koch
$13.95H&K Heavy Trigger Return Spring For HK P30/P30L Compatible With: HK P30 HK P30 V3 HK P30L HK P30L V3HKP-02195$13.95 -
HK416, MR556 Buttstock - E1 Style - Mil-Spec German
H&K Heckler & Koch
$222.95H&K Heckler and Koch Mil-Spec German E1 Stock for HK416 and HK MR556 The HK E1 Buttstock fits mil-spec buffer tubes (receiver extensions) for M4, AR15-type weapons. Each stock comes with the convex buttpad as found on factory-issued HK 416s...HKP-00052$222.95 -
POF HK MP5 9mm SEF (0,1,30 Pictogram) Housing - Push Pin
POF
$89.95POF HK MP5 9mm SEF (0,1,30 Pictogram) Housing - Push Pin This is a H&K contract SEF grip housing. The Housingg features the classic finger grooves. This part is not HK German quality, but a great value for the price. Specifications: Push Pin SEF...HKP-19826$89.95 -
HK USP 9mm, .40 S&W Complete Recoil Assembly
H&K Heckler & Koch
$79.95New HK USP 9mm & .40 Cal Tactical Recoil Spring With Buffer Assembly - Complete This is a great spare or replacement item to have on hand, it is the factory OEM HK part for Tactical models. Each recoil rod assembly was designed to be used for heavy...HKP-01475$79.95 -
HK P30, P30L, P30S, USP Compact, P2000 - 9mm Recoil Spring
H&K Heckler & Koch
$34.95Recoil Spring New HK German manufacture recoil spring for guide rod. A must-have spare part and a common consumable item. Compatible With: USP Compact 9mm P2000 9mm P30, P30L & P30S 9mm modelsHKP-01560$34.95 -
HK USP, P30, HK45 Hammer Spring - Reduced Power - 12 lb.
Lazy Wolf
$9.95Lazy Wolf HK Reduced Power Hammer Spring - 12 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-18148$9.95 -
Out Of Stock
HK Trigger Return Spring - Heavy 8.5 lbs
H&K Heckler & Koch
$11.95H&K Heavy 8.5 lbs Trigger Return Spring Also known as the heavy LEM trigger spring for the LEM and TGS conversions. Compatible With: HK USP Full Size 9mm, .40 & .45 HK USP Compact 9mm, .40 & .45 HK Tactical, Elite & Expert All...HKP-02265$11.95 -
HK UMP/USC (.45 ACP) Magazine Loader
H&K Heckler & Koch
$49.95HK German Factory USC & UMP .45 Magazine Loader Fits all HK German UMP .45 25-round magazines as well as the USC 10-round factory magazines. A great addition for your range time and to avoid those sore thumbs. Compatible With: German HK UMP .45...HKP-00606$49.95 -
HK SP5K Side-Folding Brace - Skeletonized
HKP HK Parts / SB Tactical
$229.95Side Folding Pistol Stabilizing Brace with HK Parts Adapter - HK MP5K, SP89, SP5K & Clones The HK Parts adapter offers a QD attachment point and is made from hard coat anodized aluminum. Available exclusively at HK Parts. Features: Made...HKP-21056$229.95