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
Pack of 10 Polish Signal Flares - 26.5MM
Other
Now: $59.95Was: $74.95Pack of 10 Polish Signal Flares - 26.5MM Includes an original, sealed pack of 10 Polish signal flares. The pack of 10 Polish military surplus flares include 2 of each of the following: White Fire, Red Fire, Green Fire, Blue Smoke, and Red...HKP-20793Now: $59.95Was: $74.95 -
Out Of Stock
HK MP5, MP5K Locking Piece - 100 Degree
HKP HK Parts
$33.95HKP MP5, HK94 & MP5K 100 Degree Locking Piece Each 100 degree MP5 locking piece is the proper, correct locking piece for all HK MP5, 94 and full size clones as well as this is now the correct locking piece for all HK MP5K & MP5K-PDW variants, per...HKP-18049$33.95 -
HK MP5, HK90 Series Hammer Axle for Trigger Pack
H&K Heckler & Koch
$2.77H&K 90 Series Hammer Axle For Trigger Pack HK German used hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of...HKP-15444$2.77 -
On Sale
HK91, G3 Barrel - FMP - 17.7" - Threaded 15x1
FMP HK CONTRACT
Now: $71.95Was: $89.95HK G3, 91 Barrel - 7.62/.308 - 17.7" - Threaded 15x1 Original 17.7" FMP G3 barrel threaded 15x1 RH. Portuguese manufactured to HK's military specifications. These surplus barrels are perfect for building a FMP G3 parts kit or as a replacement. Barrels...HKP-22532Now: $71.95Was: $89.95 -
HK45C, P30, USP Compact Firing Pin Spring
H&K Heckler & Koch
$8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...HKP-01502$8.95 -
On Sale
HK MP5, G3, HK53 Semi Auto Shelf Weldment - Billeted
DTAC Dakota Tactical
Now: $28.95Was: $34.95DTAC Spec Billeted Semi Auto Shelf For C/P'ed Trigger Group -Dakota Tactical The needed receiver shelf that is welded to the magwell of the receiver to allow the use of clipped & pinned trigger housings. These are as made to DTAC's custom specs...HKP-18072Now: $28.95Was: $34.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Pistol Grip with Storage - RAL8000
H&K Heckler & Koch
$49.95HK Heckler and Koch's Pistol Grip for HK416, HK MR556, HK417, HK MR762, and G28. New HK German V7 factory pistol grip with storage compartment in the bottom of the grip. Superior fit and feel to any other grip on the market. HK has hit a home run...HKP-17659$49.95 -
On Sale
HK Roller +7 - New - 8.07mm
HKP HK Parts
Now: $6.95Was: $8.99Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19442Now: $6.95Was: $8.99 -
HK VP9 Magazine Locking Plate - 17 Round
H&K Heckler & Koch
$8.95Magazine Locking Plate for 17 Round Magazine - HK VP9, P30 New HK German factory part. This is the locking plate for the bottom of the magazine spring on the newer VP9/P30 17 Round magazine.HKP-19322$8.95 -
HK91, G3 Cocking Handle - Black Rubberized - Surplus
H&K Heckler & Koch
$24.95HK German HK G3 & HK 91 Rubberized Cocking Handle- Black Used German military surplus from G3 Military rifles. Last remaining units we have on hand. Each comes complete, black in color. Date coded. Made by HK for the German military. Compatible...HKP-17083$24.95 -
On Sale
HK MP5, HK90 Series Ejector Lever Axle
MKE
Now: $13.46Was: $17.95MKE Trigger Pack Ejector Lever Axle Fits all SEF & Ambidextrous style HK trigger packs regardless of caliber. MKE product made on HK tooling. Fits all of the following 90 series trigger packs: SEF, O,1 Navy BurstHKP-22241Now: $13.46Was: $17.95 -
On Sale
Subgun Magazine Assist - 9mm - 3 Pack
Magpul
Now: $7.95Was: $9.95ORIGINAL MAGPUL® 9MM SUBGUN - 3 PACK When installed on the base of a submachine-gun magazine, the original Magpul provides improved speed and control during high stress, tactical magazine changes. Durable synthetic rubber loop with recessed rough...HKP-17310Now: $7.95Was: $9.95