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 German Roller Retainer Plate For Rollers
H&K Heckler & Koch
Now: $7.16Was: $7.95HK German Roller Retainer Plate For All Rollers - Used This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with the use and age of the service weapon. Compatible With All Original 1st...Now: $7.16Was: $7.95 -
On Sale
HK MP5 .22LR Magazine - 10 Round - Walther
H&K Hechler & Koch / Walther
Now: $35.96Was: $39.95HK MP5 22 - 10 Round magazine Brand new Walther/HK German manufactured for the HK MP5-A5 & MP5SD .22 rifle & Pistols. Each magazine offers a 10 round magazine capacity & fits all HK, Walther, Umarex MP5 A5 & MP5SD .22 rifles. A good...Now: $35.96Was: $39.95 -
On Sale
HK MP5 Optic Mount - Low Profile - Picatinny
MFI
Now: $112.45Was: $124.95MFI's crafted HK MP5 Series Mount - Low Profile Scope - Universal MFI's universal mount will fit all models from 9mm through .308. The sleek design allows the operator to flip the scope mount in either direction without blocking the ejection port (MP5...Now: $112.45Was: $124.95 -
On Sale
HK VP9, P30, VP9SK, P30SK, P2000SK Magazine Sleeve
X-Grip
Now: $14.36Was: $15.95HK VP9/P30 To VP9SK, P30SK & P2000SK XGRIP Sleeve Patent pending OEM factory accessory for the HK VP9SK, P2000SK & P30SK that allows the addition of the HK VP9, P30 magazine to be added that enhances the versatility, look, and feel of the gun...Now: $14.36Was: $15.95 -
On Sale
HK Pistol Light Trigger Return Spring
H&K Heckler & Koch
Now: $7.16Was: $7.95HK Pistol Light Trigger Return Spring Great for LEM and standard variant conversions. Each spring should be used along with the light-firing pin block spring, as shown below in the related items. Compatible With: HK USP Full Size (9mm, .40 & .45) HK...Now: $7.16Was: $7.95 -
On Sale
HK MP5, MP5K Cocking Handle
HKP HK Parts
Now: $23.96Was: $29.95HKP MP5, MP5K Cocking Handle Our HK Parts US-made cocking handle, a precise replica of the German design. It seamlessly complements your other accessories, making it an essential addition to any build. Whether you need a reliable spare or want to elevate...Now: $23.96Was: $29.95 -
On Sale
HK45C, USPC Magazine - 10 Round - .45 ACP
H&K Heckler & Koch
Now: $44.96Was: $49.95New HK German HK45C & USP Compact .45 10 Round Magazine With an extended rubberized base plate. Brand new factory German manufacture. Compatible With: HK45C, HK45C Tactical HK USP Compact 45, HK USPC .45 TacticalNow: $44.96Was: $49.95 -
On Sale
HK MP5, AP5 Magazine - 30 Round
MKE
Now: $41.36Was: $45.95HK MP5 30 Round Magazine - MKE These MKE MP5 30 round magazines are the perfect addition or replacement for your AP5 or MP5 pistol. The MKE magazine features the original MP5 design. Constructed of heat-treated steel for lasting...Now: $41.36Was: $45.95 -
On Sale
HK Push Pin Set - MP5, G3/91, 33/53/93
H&K Heckler & Koch
Now: $13.94Was: $15.49HK Set Of Two (One Large And One Small) Push Pins -Used These are great replacements or spare parts to keep on hand. Compatible With: HK91 & G3 53, 33, and 93 MP5, SP5, SP89 PTR and GSG-5 family of guns. Please Note: The GSG5 will take...Now: $13.94Was: $15.49 -
On Sale
HK45, USP, Mark 23 Barrel O-Ring - .45 ACP - Red
HKP HK Parts
Now: $3.96Was: $4.95HKP HK .45 Barrel O-Ring All Caliber Pistols - Red A rare find as we have found a small lot of HK red-colored HK .45 O-rings. All HK O-rings are still made of the same material as the newer black O- rings only in the HK red color. A great spare and...Now: $3.96Was: $4.95 -
On Sale
HK MP5K, SP89, SP5K Folding Brace - 9mm - Polymer
SB Tactical
Now: $107.99Was: $119.99HK MP5K, SP89, SP5K & Clone - Side Folding Pistol Stabilizing Brace MP5K, SP5K, Zenith Z5P, Z-5K Folding Stabilizing Brace System. This is current production with a polymer brace adapter. ***Please note some clones will need some slight fitting...Now: $107.99Was: $119.99 -
HK Vertical Foregrip - Short - Picatinny
HKP HK Parts
$24.95HKP Vertical Grip - Picatinny Mount - Short This grip is by far the nicest shorter style or stubby grip we have encountered for the money. This rock solid grip is a must have for anyone that uses a vertical grip. This is the only vertical grip out there...$24.95