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
HK45 +5 Magazine Extension Kit
HKP HK Parts
Now: $51.95Was: $64.95HKP HK45 +5 Magazine Extension Kit HK Parts magazine extension +5 kit adds 5 additional rounds to the HK45 magazine with the simple swap of the floor plate & high-reliability mag spring. HKP highly recommends using a magazine loader when...HKP-20809-MNow: $51.95Was: $64.95 -
On Sale
HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH
HKP HK Parts
Now: $23.95Was: $29.95HKP .40 S&W Vented Micro Comp - Threaded 9/16x24 RH The HK Parts Micro Comp & Thread Protector is a lightweight, dual function device that serves as both a compensator and thread protector. It easily attaches to any factory spec 9/16x24 .40...HKP-19957Now: $23.95Was: $29.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw - X Style
H&K Heckler & Koch
$29.95Heckler and Koch Handguard Locking Screw for your HK416, MR556, HK417, MR762 Replacement handguard locking screw that secures the handguard to the upper receiver. This version features the "X" allowing the bolt head or HK sling hood tool to be used for...HKP-02680$29.95 -
On Sale
HK VP9, P30L Dynamic Pistol Rest - BLEMISHED
Other
Now: $89.95Was: $199.95USA 1Shot GS Dynamic Pistol Rest for HK VP9 and HK P30 Series Pistols - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Features: Not permanently...HKP-20525-BL-BNow: $89.95Was: $199.95 -
HK G36, SL8 Locking Push Pin for Handguards, Lowers, Magwells - Heckler and Koch
H&K Heckler & Koch
$48.95New HK German G36 & HK SL8 Push Pin For Forearm, Mag Well Or Lower Each push pin is a factory German part and is new. This is also required for those doing the SL8 to G36 style conversions. A factory German G36 uses three of these factory push pins...HKP-00804$48.95 -
HK G3 Buffer Screw Crush Washer
H&K Heckler & Koch
$0.95HK G3 Crush Washer For Buffer ScrewHKP-16984$0.95 -
HK MP5 Ejector Lever - .40 S&W, 10mm
H&K Heckler & Koch
$38.74H&K Heckler and Koch German HK MP5 40, MP5 10mm Ejector Lever Get the ejector that is tried and true and the best upgrade you can make with your HK MP5 40 or 10mm. This is the finest and only ejector that will work properly for any length of time...HKP-00412$38.74 -
On Sale
HK416 Bench Mat - .22 LR
HKP HK Parts
Now: $19.95Was: $24.95HK 416 .22 LR Bench, Gunsmithing Mat Our HK 416 .22 bench mat is the perfect cleaning & repair mat designed specifically for your HK 416 .22 models. Have fun and learn while you work on your favorite H&K firearm. The soft top protects your...HKP-17279Now: $19.95Was: $24.95 -
HK G3 Buffer Screw Locking Washer
H&K Heckler & Koch
$0.95HK G3 Buffer Screw Locking Washer Used in good, working conditon.HKP-16983$0.95 -
On Sale
HK MP5 Handguard - Wide
AC-Unity
Now: $14.45Was: $18.95AC-Unity HK MP5 Wide Handguard Made by AC-Unity with advanced, German made polymer-resin/granulate that is both lightweight and shock/UV resistant. This state of the art polymer is formulated to withstand temperatures from -30°C to 120°C...HKP-21637Now: $14.45Was: $18.95 -
On Sale
HK91, G3 Buffer - Folding Stock - Replacement
Choate
Now: $2.95Was: $3.95Choate HK 91 & G3 (7.62x51/.308) Folding Stock Replacement Buffer Choate .308 folding stock replacement buffer for all HK91/G3 PTR stocks. A great item to have on hand as these do wear and are prone to breaking. Compatible With: HK 91/G3HKP-00211Now: $2.95Was: $3.95 -
On Sale
HK MP5, SP5 Binary Trigger Group - Navy Pictogram
Magpul / FA Franklin Armory
Now: $667.95Was: $859.95Magpul SL HK MP5 Binary Trigger Group: Latest and greatest trigger group option for those looking for a binary option and the added comfort of the Magpul housing. We take a Magpul SL housing, our compatible binary selector levers, and complete it with a...HKP-21406-MNow: $667.95Was: $859.95