All Parts
At HK PARTS, we bring you a wide array of high-quality H&K accessories and components for your favorite firearms. Whether you're upgrading your H&K pistol or rifle, or even looking for parts kits, we've got you covered. Discover a range of top-rated components for popular models like VP9, USP, P30, MP5, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, we have it all. Enhance your firearm's performance and functionality with our premium components.
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Tommy Built UMP Buffer Tube Adapter
Tommy Built
$249.95Tommy Built UMP Buffer Tube Adapter UMP hinge with Buffer Tube Mount for adapting an AR style Mil spec brace or stock. Constructed of nylon and has 6 adjustable positions. Adapter only- stocks in the pictures are for reference.HKP-19967$249.95 -
Comp-Tac HK P30, HK 45C EV2 AIWB LH Holster - Black
Comp-Tac
$59.95Comp-Tac HK P30, HK 45C EV2 AIWB LH Holster - Black The eV2 Holster is designed for easy as well as deep concealment in the Appendix Inside the Waistband (AIWB) position. The eV2's holster body is made of 100% aircraft-grade Kydex® which provides the...HKP-19412$59.95 -
B&T HK UMP 5 Prong Flash Hider - Black
B&T Brugger & Thomet
$129.95B&T HK UMP 5 Prong Flash Hider Each flash hider includes the proper quick detach system to take the flash hider on and off. Each flash hider features a 5 prong design. Compatible With: All HK UMP .45 & UMP .40 flanged...HKP-16891$129.95 -
Out Of Stock
HKP HK VP9SK, HK P30SK, HK 45C Replacement Kit for Comp Weight™
HKP HK Parts
$9.99Comp Weight™ - Replacement Kit - HK VP9SK/P30SK/HK45C Replacement Set for the HK Parts VP9SK, P30SK & HK45C Comp Weight™/compensator. This includes the quick detach lever, side set screw, and bottom lever screw.HKP-19459$9.99 -
Comp-Tac HK P30, HK 45C Infidel Max LH Holster - Black
Comp-Tac
$64.95Infidel Max Holster - Left Hand - HK P30/HK45C The Infidel Max Holster is an all-Kydex Inside the Waistband holster with cant adjustment holes to allow the user to change from a reverse cant, speed cant and FBI forward cant. Features: All...HKP-19332$64.95 -
Comp-Tac HK P30, HK45C EV2 AIWB LH Holster Hybrid Max - Black
Comp-Tac
$67.95Comp-Tac HK P30, HK45C EV2 AIWB LH Holster Hybrid Max - Black The eV2 Max Holster is a hybrid, appendix inside-the-waistband (AIWB) holster designed to be so comfortable you forget you are wearing it. This hybrid holster is a combination of a leather...HKP-19572$67.95 -
Comp-Tac HK P30, HK45C Sport-Tac LH Holster - Black
Comp-Tac
$74.95Comp-Tac HK P30, HK45C Sport-Tac LH Holster - Black The Sport-TAC Holster is a hybrid, inside-the-waistband holster designed to comfortably carry a 4" handgun at the 4-5 o'clock position. The Sport-TAC features a 600D interlock padded backing that...HKP-19687$74.95 -
Grayguns SIG P320 Competition Hybrid Trigger System
Grayguns
$159.00Grayguns SIG P320 Competition Hybrid Trigger System The Grayguns Adjustable Straight Competition Trigger System for the SIG Sauer P320 is a drop-in, enhanced trigger package with competition sear for your P320 that reduces trigger weight as low as 4...HKP-19752$159.00 -
Out Of Stock
H&K HK UMP 2 Position Complete Lower - Black
H&K Heckler & Koch
$0.00New HK German 2 Position Lower Complete New German Heckler & Koch UMP Lower. 2 position settings (S,F). Each lower comes complete with all the factory internals. This item is ideal for the USC to UMP conversion or to keep as a spare. Compatible...HKP-19117$0.00 -
Comp-Tac HK P30, HK45C International LH Holster - Black
Comp-Tac
$79.95Comp-Tac HK P30, HK45C International LH Holster - Black The International is an Outside the Waistband (OWB) holster with a modular mounting design giving the user 16 holster options in 1. Designed to be worn at 3:00 this holster is perfect for...HKP-19611$79.95 -
On Sale
Grayguns SIG P320 Adjustable Hybrid Trigger
Grayguns
Now: $62.95Was: $94.00Grayguns SIG P320 Adjustable Hybrid Trigger The Grayguns P320 Adjustable Hybrid Trigger is a drop-in, bar-stock, enhanced trigger for your SIG Sauer P320. Expect a reduced pull weight as compared to the factory curved or straight trigger. Includes...HKP-19751Now: $62.95Was: $94.00 -
Out Of Stock
H&K HK UMP Demilled Extended Rear Receiver Section
H&K Heckler & Koch
$0.00HK German Factory UMP Receiver Section - ExtendedThis is a demilled factory HK UMP rear receiver section that is perfect for the new Tom Bostic USC-UMP conversions. This section is the perfect length in order to do the USC/UMP conversion. Just in only...HKP-19798$0.00 -
H&K HK USP, HK USPC, HK 45 & HK 45C Detent Plate For V1 & V2
H&K Heckler & Koch
$29.95Detent Plate For V1 & V2 This will provide the safety and decocking functions for both the left and right side selector levers for the HK pistols below. Compatible With: USP Full Size, USPC Pistols in all Calibers 9mm, .357, .40 & .45 HK45...HKP-01171$29.95 -
Out Of Stock
HK UMP Paddle Mag Release Complete Assembly
$19.95UMP Paddle Magazine Release - US Made - Assembly Complete New UMP Mag release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. Simple & easy to install no gunsmith needed or required. Compatible...HKP-19499$19.95 -
Out Of Stock
HK USC, HK UMP Cocking Handle Assembly
HKP HK Parts
$49.95HK USC, HK UMP Cocking Handle Assembly Includes: Cocking handle Support spring Cocking lever support Roll pin for cocking handleHKP-19155$49.95 -
Out Of Stock
HK USC, HK UMP Front Sight - Black
USA
$11.95Front Sight - HK USC, UMP - USA Easy to swap out with just knock out the roll pin replace and then re-insert the roll pin. Common wear or breakage part. Compatible With: All models of USC and UMP'sHKP-19124$11.95