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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On Sale
HK USP Series Front Sight 6.2mm
H&K Heckler & Koch
Now: $9.95Was: $19.95Heckler and Koch 6.2mm Front Sight for HK USP Series H&K factory height replacement sight for USP Compact. This sight will also work with select USP full size pistols but is shorter than the factory 6.8mm sight. Compatible With: USP...HKP-02255Now: $9.95Was: $19.95 -
On Sale
HK MP5 LS5 Trigger Group, Complete - Push Pin
Lee Sporting
Now: $466.95Was: $549.95Lee Sporting LS5 Complete Trigger Group - MP5 Push Pin The LS5 trigger group from Lee Sporting is a definitive ergonomic upgrade over the OEM grip, boasting a weight reduction of 4.3oz compared to the original. This billet aluminum trigger group is...HKP-20467Now: $466.95Was: $549.95 -
Out Of Stock
Folding Stock - SS-8 with 1913 Folding Mech
JMAC Customs
$284.99JMAC Customs SS-8 Folding Stock w/1913 Folding Mech Skeleton stock 8" with 1913 folding mech (not assembled) 2x integrated QD sling socket 8" length Drilled and tapped for optional cheek risers (will be available in the future) Compatible with SIG...HKP-20146$284.99 -
HK91, G3 PTR Fixed Buttstock, Complete with Enhanced Heavy Buffer - Surplus - Black
H&K Heckler & Koch
$349.95German G3, 91, PTR Stock complete with Enhanced Heavy Buffer - Surplus Used black German stock complete with Enhance DMR buffer installed. Ready to drop in on your HK or clone rifle. Used in perfect working condition. Each stock includes all parts...HKP-20069$349.95 -
On Sale
HK MP5, HK94 Trigger Group - Flat Trigger - 3 Position - Semi-Only - 5 US Made Compliant Parts
Now: $584.95Was: $649.95Trigger Group - Semi-Only - 3 Position - 5 US Made Compliant Parts with Flat Trigger - MP5/94 Ambidextrous Trigger Group - Semi Auto - 5 U.S Parts Includes: Housing Hammer Sear Flat trigger Trigger box Push pin housing if c/p is needed please add the...HKP-19939Now: $584.95Was: $649.95 -
HK MR762 M-LOK Handguard - 14.7"
H&K Heckler & Koch
$294.95H&K HK MR762 M-LOK 14.7" Handguard - Black This handgurad is 14.7" long featuring a flat top Picatinny Rail and M-LOK attachment points. Compatible With: HK MR762HKP-19775$294.95 -
HK SP5 Trigger Group - SEF Navy Style - Clipped and Pinned
H&K Heckler & Koch
$579.95Navy Style - SEF - Clipped and Pinned Trigger Group - HK SP5 Ready to drop on your SP5 receiver. Great replacement for the 2 position ambidextrous trigger group. Each trigger group is comprised of genuine Heckler & Koch Products. Includes a match...HKP-19319$579.95 -
HK MR762 Ejection Door Clamping Sleeve
H&K Heckler & Koch
$4.95H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762HKP-16518$4.95 -
HK417, MR762, G28 E1 Charging Handle - Extended - Ambidextrous
H&K Heckler & Koch
$209.95H&K HK MR762/417/G28 E1 Extended Ambidextrous Charging Handle HK German MR762/HK 417 extended charging handle. The unique release latch can be swapped from left to right sides to make each setup ambi friendly and modular. HK's own design boasts an...HKP-16599$209.95 -
On Sale
HK Mark 23 Flash Hider - Vortex - 16x1 RH
Smith Enterprises
Now: $67.95Was: $79.95Smith Enterprises HK Mark 23 .45 ACP Vortex Pistol Flash Hider - 16x1 RH The Vortex Flash Hider is built to the highest standards, featuring proven flash-hiding capabilities for the Mark 23 and other 16x1 RH threaded barrels. Crafted in the USA from 4140...HKP-15806Now: $67.95Was: $79.95 -
On Sale
HK VP9, P30, HK45 Night Sight Set
Heinie
Now: $179.95Was: $199.95Heinie EZ-Lock LEDGE QWIK Straight Eight Night Sight Set These sights have a rear notch that is .156 wide. This wider rear notch allows for quicker acquisition of the front sight by showing more light on either side of the front. These new 3950L model...HKP-02124Now: $179.95Was: $199.95 -
HK P2000SK Backstrap - Large - Black
H&K Heckler & Koch
$29.95H&K P2000SK Backstrap - Large - Black Compatible With: HK P2000SKHKP-02289$29.95