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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UCS Universal Carbine Stock - M1913 rail
Magpul
$209.95Magpul UCS Universal Carbine Stock The Magpul UCS (Universal Carbine Stock) is designed to be the ideal lightweight supplement to the vast array of firearms utilizing a vertical M1913 rail on the...HKP-22171-M$209.95 -
HK CC9 Magazine Locking Plate - 12 Round
H&K Heckler & Koch
$5.95H&K CC9 Magazine Locking Plate - 12 Round Locking plate for H&K CC9 12-round magazine. Secures the floor plate and internal components to the magazine body. German-made by H&K. Compatible With:HKP-22145$5.95 -
HKP Mouse Pad, Mini-Mat - Bundesadler
HKP HK Parts
$12.99HKP Mouse Pad - Bundesadler - Non-Slip Features stitched edges and a non-slip rubber base. Great as a mouse pad or a mini gun mat. Specifications:HKP-21846$12.99 -
HK MP5K Pistol Stabilizing Brace - SBA5
SB Tactical
$248.95SB Tactical HK MP5K SBA5 Pistol Stabilizing Brace SB Tactical combined with our MP5K end cap creates a true drop-in brace, perfect for those seeking the flexibility that the SBA5 pistol stabilizing...HKP-21795-M$248.95 -
HK MP5, VP9 Reflex Sight HE-507K - Green
Holosun
$354.95Holosun HK VP9 SCS-MOS Reflex Sight The HE507K-GR X2 is an open reflex optical sight designed for subcompact pistol applications. Lock Mode, when activated, locks the buttons preventing inadvertent...HKP-21677$354.95 -
On Sale
HK MP5 Stock - MOD2 - Strike Industries
HKP HK Parts / Strike Industries
Now: $83.78Was: $199.95Strike Industries HK MP5 Drop-In MOD2 Stock We pair our MP5 AR Stock adapter with this Strike MOD2 stock to give you a drop-in MP5 stock. Give your build a modern look and added comfort and...HKP-21331-MNow: $83.78Was: $199.95 -
SL Magpul Housing Service
Magpul
$49.95 - $129.95SL Magpul Housing Service Our SL Magpul Housing conversion service can be preformed to convert a MP5 style magpul housing into a MP5K style housing. We can also convert them to be compatible with...HKP-20614-M$49.95 - $129.95 -
Out Of Stock
HK416, MR556 Firing Pin - Silver
GSG9
$34.95Firing Pin for HK416 and MR556 Firearm - USA - GSG9 US made HK416 and MR556 Made from hardened stainless steel. Compatible With: HK416 HK MR556HKP-20650$34.95 -
On Sale
HK VP Series Curved Trigger - Gold Tab
Lazy Wolf
Now: $74.21Was: $134.95C1 - Curved VP Series Trigger - Lazy Wolf Guns - Gold Tab In a collaboration with Lazy Wolf Guns, HK Parts is offering quality aftermarket triggers for your HK VP9 & VP40 handguns. The drop in VP9...HKP-19813Now: $74.21Was: $134.95 -
HK G36, G36K Folding Stock - FDE
HKP HK Parts
$109.95Folding Stock - HK G36, G36K - Full Length Stock HK G36 10.5" Stock complete for G36 firearms. The G36/G36K stock is the longest stock option for the G36 family of firearms. For those that would like...HKP-19298$109.95 -
On Sale
HK USP Series Front Sight 6.2mm
H&K Heckler & Koch
Now: $7.46Was: $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...HKP-02255Now: $7.46Was: $19.95 -
HK G36 Single Optic Carrying Handle - Incomplete
$149.95HK G36 Single Optic Carrying Handle - Incomplete Stripped. The perfect for replacement of your well worn housing or broken housing. Just install your optic and you have a like new unit.HKP-16365$149.95