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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HK Mark 23 Magazine Release
H&K Heckler & Koch
$24.99Heckler and Koch Magazine Release HK Mark 23 Compatible with: Mark 23HKP-01772$24.99 -
Out Of Stock
HK VP9, P30, HK45C Night Sight Set - HD XR - Yellow
Trijicon
$184.95Trijicon HK VP/45C/P30 HD XR Night Sight Set - Yellow Front Outline The Trijicon HD XR Night Sights were specifically designed with the ever-evolving challenges of law enforcement agencies in mind. Building on the features of the current HD Night...HKP-18271$184.95 -
HK USPC, P2000 Magazine Floorplate - 9mm - 10 Round - Flat
H&K Heckler & Koch
$59.95H&K 10 Round HK USPC 9mm Flat Magazine Floor Plate Compatible With: HK USP Compact 9mm 10 round magazines HK P2000 9mm 10 round magazinesHKP-01195$59.95 -
HK SP5K Spec Only 9mm 2 Position 0,1 Pictogram FBI Style Grip Trigger Housing
H&K Heckler & Koch
$194.95H&K SP5K Spec 9mm 2 Position (0,1 Pictogram) FBI Style Grip Trigger Housing Upgrade your HK SP5K with this authentic German FBI style grip housing, designed specifically for the SP5K model. Compatible with all HK German ambidextrous trigger packs and...HKP-18307$194.95 -
HK G36, SL8 Ejector Spring
H&K Heckler & Koch
$35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.HKP-01867$35.95 -
On Sale
HK G36, SL8 Cocking Handle Spring - US
Now: $7.95Was: $9.95G36 Cocking Handle Spring- US Made Compatible With: G36 All variants SL8 All variantsHKP-18369Now: $7.95Was: $9.95 -
HK USC, SL8 Buttstock Allen Screw
H&K Heckler & Koch
$17.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$17.95 -
On Sale
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
Now: $39.95Was: $49.95HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...HKP-17771Now: $39.95Was: $49.95 -
Out Of Stock
HK33, HK53, HK93 Bolt Carrier - Full Auto - Buffered Style - Used
H&K Heckler & Koch
$345.95HK German production HK German HK33, 33K, 93 Full Auto Bolt Carrier Used Buffered Style Hard to find, vintage HK German buffered style F/A bolt carrier. Perfect for a spare or to upgrade your clone or conversion to the factory correct latest style bolt...HKP-16455$345.95 -
On Sale
HK MP5 Locking Piece #24 - 90 Degree - Low Impulse - .40 S&W, 10mm - US
RCM
Now: $35.95Was: $44.95RCM MP5 40/10 Low Impulse Locking Piece #24 Made out of enhanced material and heat treated to spec. The # 24 is the 90-degree locking piece. This is also the standard non-high impulse ammo locking piece. Compatible With: MP5...HKP-15148Now: $35.95Was: $44.95 -
On Sale
HK MP5K, SP89, SP5K Barrel - 9mm - 3 Lug - Threaded 1/2x32
B&T Brugger & Thomet
Now: $319.95Was: $399.95B&T HK MP5K/SP5K/SP89 9mm Barrel - Threaded 1/2x32 - 3-Lug New from B&T Switzerland, this cold hammer-forged (CHF) and nitrided barrel is specifically designed for the HK SP5K. Manufactured to exact HK factory specifications, it features a...HKP-17908Now: $319.95Was: $399.95 -
HK MP5, HK94 Cocking Tube Support - Steel
H&K Heckler & Koch
$84.95New HK Factory German MP5 & HK94 All Steel Cocking Tube Support Each HK cocking tube support is a factory German HK part that comes complete with the detent and spring installed. This part is the perfect upgrade from the cheap metal or plastic...HKP-00094$84.95