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
-
On Sale
HK MP5 Barrel Extension and Faux Suppressor - 3 Lug - .40 S&W, 10mm
HKP HK Parts
Now: $44.59Was: $69.95HKP MP5 40/10 Fake Suppressor/Barrel Extension - 3-Lug This fake suppressor is used as a barrel extension to bring your H&K MP5 40/10 8.85" barrel to legal conforming standards of 16" so you do not...HKP-00889Now: $44.59Was: $69.95 -
Out Of Stock
HK MP5K Burst Trigger Housing - 3 Position Pictogram S,E,3F - Push Pin - 9mm - RARE
H&K Heckler & Koch
$0.00H&K MP5K 9mm 3 Position (S,E,3F Pictogram) Burst Trigger Housing - Push Pin - RARE This rare HK MP5K SE3F marked ambidextrous push pin trigger features a 3 position pictogram (S,E,3F) Safe, Semi,...HKP-02015$0.00 -
Out Of Stock
HK MP5K Trigger Housing - 4 Position Pictogram 0,1,3,F - Push Pin - 9mm
H&K Heckler & Koch
$399.95H&K MP5K 9mm 4 Position (0,1,3,F Pictogram) Trigger Housing - Push Pin This new HK German MP5K 4 position trigger housing features the 0,1,3,F pictogram and is designed as a factory push pin style...HKP-02184$399.95 -
HK MP5K, SP89, SP5K End Cap, Incomplete - 9mm
H&K Heckler & Koch
$54.95HK Factory German MP5K, SP-89, SP5K End Cap - Incomplete Each pistol end cap is OEM HK German MP5K, MP5K-N, SP5K, SP89 stripped end cap. Compatible With: MP5KHKP-18208$54.95 -
Out Of Stock
HK MP5 Trigger Housing - Burst 3 Position 0,1,3 Pictogram - Push Pin Style - USED
H&K Heckler & Koch
$199.95H&K 3 Position (0,1,3 Pictogram) Burst Trigger Housing - Push Pin Featuring the 3 Position pictogram (0,1,3), this housing is crafted from durable black polymer. This ambidextrous housing is push pin...HKP-02697$199.95 -
HK MP5 Parts Kit - A2 Buttstock and FBI Lower - 9mm - 100% German
H&K Heckler & Koch
$1,889.95HK German MP5 9mm Used Parts Kit Complete MP5 Parts Kit - 9mm (Minus Receiver) All MP5 Kits: 100% German Parts HK 3-Lug MP5 BarrelHKP-01911$1,889.95 -
On Sale
HK MP5 Parts Kit - .40 S&W - Pistol Build
HKP HK Parts
Now: $1,267.78Was: $1,674.95MP5 .40 Pistol Build Kit Complete German & USA Made Parts MP5 .40 parts kit complete with all the parts needed for an MP5 semi-auto pistol. Each kit comes with all 6 of the needed US made compliance...HKP-18405Now: $1,267.78Was: $1,674.95 -
HK MP5, HK94, HK34 Barrel - 9mm - 12.7"- Threaded 1/2x28
RCM
$204.95RCM MP5, HK34, HK94 Barrel - 9mm - 12.7"- Threaded 1/2x28HKP-17762$204.95 -
On Sale
HK MP5, SP5, MP5K, SP5K Magwell Tensioner Armorer Tool - 9mm
War Hammer Armaments
Now: $179.96Was: $199.95War Hammer Armaments MP5 Magwell Tensioner Armorer Tool The War Hammer Armaments magwell tensioner armorer tool provides a fast, simple solution for correcting loose magwell fitment on MP5 and...HKP-22990Now: $179.96Was: $199.95 -
HK91, G3 Buffer System - Enhanced
HKP HK Parts
$97.95HKP Enhanced Buffer System for HK91 and G3 HKP enhanced buffer system for HK91 and G3 pattern rifles. Built with a new steel buffer body, new buffer plunger, and a parkerized finish like factory...HKP-22866$97.95 -
On Sale
AR-15 C.A.R.L. 6-Round Limiter Lever for FRTs
ST Inc
Now: $130.50Was: $145.00ST Inc. 6-Round C.A.R.L. Lever for AR-15 Rifles Equipped with AS Designs ARC-Fire and Atrius Trigger Systems The C.A.R.L. (Cam Activated Reset Limiter) is a drop-in FRT-piggy-back system that...HKP-22564Now: $130.50Was: $145.00 -
Out Of Stock
HK91, G3 Trigger Shoe
H&K Heckler & Koch
$12.95HK G3 Trigger Shoe Factory Heckler and Koch G3 trigger shoe. Compatible With:HKP-22524$12.95