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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
Out Of Stock
HK G36C Barrel Conversion and Front End Kit - 5.56 / .223 - 8.9" - Threaded 15x1
HKP HK Parts
$889.95G36C Barrel Front End Barrel Kit - 223/556 New production HK G36C style barrel conversion kit and front end kit. Each kit will include the necessary parts to build a G38/SL8 variant into the G36KC barrel length variant as pictured. All you need is this...HKP-18228$889.95 -
HK91, G3 Trigger Group - 5 U.S. 922 Parts
PTR
$369.95HK 91, G3, & PTR91 Semi Auto Trigger Group Complete This lower is ready to drop on your semi-auto HK firearm. It comes complete with the US-made parts already installed. The remaining parts are all German HK parts to make up the rest of the trigger...HKP-02643$369.95 -
HK33, HK53, HK93 A2 Fixed Buttstock - Surplus - Jungle Green
H&K Heckler & Koch
$122.95Surplus - Fixed Stock - Jungle Green - HK93,33,53 Hand-picked stocks in excellent condition. Comes with matching buttpad. Ready to install on your HK or clone rifle. German military surplus, but handpicked to give you the best of the offerings...HKP-18887$122.95 -
Out Of Stock
HK53, HK51 Vented Handguard - Vertical
H&K Heckler & Koch
$149.95HK German HK53, HK51 Vented Hand Guard - Vertical Style This HK German part is the proper length for use on the HK 53 or HK51 length receivers. The handguard is vented on all 3 sides to promote barrel cooling and provide additional grip. Compatible...HKP-00469$149.95 -
HK MP5 Paddle Magazine Release Lever - .40 S&W, 10mm
HKP HK Parts
$59.95HKP HK Parts Magazine Release Lever for .40 S&W and 10mm HK MP5 Compatible with MP5HKP-01274$59.95 -
HK MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group
H&K Heckler & Koch
$1,999.95H&K MP5, SP5 4 Position 0,1 Trigger Group - Universal Trigger group New HK German MP5, SP5 9mm 4 Position Burst (0,1,3, F) Trigger Housing professionally clipped & pinned and paired with a factory German MP5 trigger pack ready for your semi-auto...HKP-16725$1,999.95 -
HK MP5 Cocking Tube - 9mm
H&K Heckler & Koch
$109.95H&K MP5 9mm Cocking Tube New factory German HK uninstalled part directly from HK Germany. Rare and hard to find. Compatible With: MP5, 94, SP5 MP5 clones or other custom buildsHKP-00093$109.95 -
Out Of Stock
HK MP5, MP5K Case Deflector
H&K Heckler & Koch
$0.00HK German case deflector for receiver flat or receiver for all MP5, HK94, MP5K & SP89 builds. The case deflector is riveted or welded in place on the ejection port of the 9mm receiver/flat to aid in the extraction of the 9mm round. HK MP5, 94 HK...HKP-00871$0.00 -
Ambi Trigger Pack - Semi Auto 0,1 - 9mm - Flat Trigger - US Made 922r Parts
HKP HK Parts
$349.95Ambidextrius Trigger Pack with Flat Trigger For MP5, HK94 - 4 US 922R Compliant Parts HK MP5/94 9mm Semi Auto Trigger Pack complete with Flat Trigger installed. Assembled and ready install on your firearm. The components that count towards 4 of...HKP-18512$349.95 -
HK MP5K Apparel and Patch Collection - K Series Hats, Patches, and Shirts - V1
HKP HK Parts
$0.00HKP HK MP5K Apparel and Patch Collection - Version 1 Represent your platform with the HK Parts K Series apparel and accessories lineup. Built for enthusiasts who appreciate iconic firearms and clean, understated design, this collection delivers premium...HKP-22454-M$0.00 -
Out Of Stock
HK MR556 A4 Hammer Spring
H&K Heckler & Koch
$5.95H&K MR556 A4 Hammer Spring Genuine H&K hammer spring for the MR556 A4. Compatible With: HK MR556 A4HKP-22083$5.95 -
Out Of Stock
HK VP9 A1, P30 A1 Magazine Floorplate - 9mm - 17 Round
H&K Heckler & Koch
$21.95H&K VP9/P30 A1 17 Round Magazine Floorplate Factory replacement floorplate for VP9 and P30 17-round magazines. Compatible with HK VP9/P30 A1 17 round magazines HK VP9/P30 17 round magazines HK VP9/P30 15 when used with a 17-round magazine locking...HKP-21979$21.95