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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On Sale
HK MP5 .22 LR Folding Stock
B&T Brugger & Thomet
Now: $211.95Was: $249.95B&T Folding Stock for MP5 .22 LR Swiss made B&T folding stock for the MP5 22 LR. This is a military grade stock section as supplied by B&T to HK Germany. B&T Switzerland has supplied these to law enforcement and military units around the...HKP-20166Now: $211.95Was: $249.95 -
On Sale
UZI Magazine Spring - .22LR - 20 Round
Walther
Now: $1.95Was: $3.95Walther 20 Round UZI .22 Magazine Spring Uzi .22LR 20 round magazine spring for the Uzi, Walther, Umarex .22 pistol. A good supply of spare mag springs is a must. These are ideal to have on hand as the spring can become damaged or worn out. New fresh...HKP-15592Now: $1.95Was: $3.95 -
HK VP40, P30 Magazine - 10 Round - .40 S&W
H&K Heckler & Koch
$54.95HK VP40, P30, P30S & P30L .40 S&W - 10 Round magazine New HK German manufacture. It is a CA, NY, compliant magazine because it holds 10 rounds. Hard to find in this configuration. Compatible With: HK VP40 HK P30/P30L .40 S&WHKP-01739-M$54.95 -
On Sale
HK VP9SK, P30SK Magazine Pinky Rest
HKP HK Parts
Now: $17.95Was: $22.95HKP HK VP9SK/P30SK Magazine Pinky Rest This machined floorplate allows the user to quickly swap the floorplate to add a finger rest for the pinky on a standard VP9SK & P30SK 10-round magazine. Why settle for cheap plastic or 3D-printed...HKP-17853-MNow: $17.95Was: $22.95 -
Out Of Stock
Micro Dot Sight - Red and Green - Low Profile
AIM
$59.95Micro Red Dot Low Profile Sight With Green & Red Dot Option For those that require a good, reliable, well made optic without the name brand or heavy price tag, this is an outstanding choice. This micro optic is rated for anything from .22 all they...HKP-16209$59.95 -
On Sale
HK MP5 Receiver Flat with Weldment Set - 9mm
HKP HK Parts
Now: $175.95Was: $219.95HKP HK MP5 9mm Receiver Flat with Weldment Set New MP5 receiver flat and weldment set combined for the best complete build option on the market. Made by the original German tool and die maker of the LSC receiver flat utilizing factory original German...HKP-20920Now: $175.95Was: $219.95 -
On Sale
HK VP9 Optic Plate #7 - Holosun 509T - Red Dot Pistol Mount
HKP HK Parts
Now: $39.95Was: $49.95HK VP9, VP9L Optics Ready #7 - Holosun 509T - Optic Mount - Steel The finest all steel mounting solution for your HK VP9, VP9L OR model.New solid billet machined steel optics plate. Each plate is CNC machined from a solid billet of ordnance grade steel,...HKP-19972Now: $39.95Was: $49.95 -
Out Of Stock
HK MP5, MP5K Drum Magazine - 50 Round - 9mm
F5 MFG
$199.00F5 MFG 50 Round HK MP5 and HK MP5K 9mm Drum Magazine HK MP5 and HK MP5K 9mm - 50 Round Drum New 3rd generation redesigned version. Now offered at an even lower price! You asked for it and the long-awaited and highly anticipated MP5 50 Round Drum Magazine...HKP-16537-M$199.00 -
On Sale
HK MP5 Magazine Release - Extended Streamline - EMR
HKP HK Parts
Now: $35.95Was: $44.95HKP HK Parts Extended Magazine Release - EMR - Streamline for HK MP5 Elevate your paddle style mag release with the streamlined extended mag release. Crafted from a solid billet of aircraft-grade aluminum and featuring a hard anodized finish,...HKP-22175-MNow: $35.95Was: $44.95 -
On Sale
HK USP Straight Trigger
Grayguns
Now: $84.95Was: $94.95Grayguns Straight Trigger for HK USP Straight trigger upgrade for HK USP full-size pistols. Designed to reduce over-travel and provide a consistent, 90-degree break. The straight face allows a lower finger position, which can make the trigger feel...HKP-21344Now: $84.95Was: $94.95 -
Out Of Stock
HK MP5K, SP89, SP5K Tri-Rail Handguard - 9mm
B&T Brugger & Thomet
$265.00B&T Brugger and Thomet Tri-Rail Handguard for HK MP5K, HK SP89 and HK SP5K 9mm B&T Tri-Rail handguard for HK MP5K platforms. Specifications: Color: Black Height max: 48.4 mm Length max: 86 mm Length of right rail: 82 mm Length of left...HKP-16889$265.00 -
Out Of Stock
HK MP5, MP5K Paddle Magazine Release - Anti-Rattle Roller Tipped - 9mm
HKP HK Parts
$29.47HKP HK Parts 9mm Anti-Rattle Roller Tipped Paddle Magazine Release for HK MP5 and MP5K Latest generation paddle mag release for all 9mm MP5, MP5K style builds. Made to the latest German specs, materials, and design. Compatible...HKP-17570$29.47