Small Parts
Explore our extensive selection of HK small parts at HKParts, perfect for repairs, upgrades, and custom builds. Our inventory includes high-quality, precision-machined replacement parts and maintenance kits designed for a wide range of HK models. Whether you need push pins, springs, or custom components, our HK-specific small parts ensure optimal performance and durability for your firearm.
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HK VP9, VP9SK, VP40 Sear Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Catch Pressure Spring Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16800$9.95 -
HK USP, USP Compact, P2000 Magazine Release Lever
H&K Heckler & Koch
$12.95HK Magazine Release Lever Compatible With: HK USP .45 HK USP .40 HK USP 9mm HK USP Compact 9mm HK USP Compact .357 SIG HK USP Compact .40 HK USP Compact .45 HK USP Tactical, Elite, Expert both full size & compact HK P2000 9mm & .40/.357 HK...HKP-02480$12.95 -
HK45, HK45 Compact, USP, USP Compact New Style Hammer
H&K Heckler & Koch
$62.95H&K HK USP/USPC/45/45C New Style Hammer Will work for USP/USPC variants 1-4, 9 & 10. This part replaces the older HK hammer without the sear cutout (part #214825). Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact...HKP-01256$62.95 -
HK416 Firing Pin Retaining Pin - Enhanced
H&K Heckler & Koch
$19.95Heckler and Koch Firing Pin Retaining Pin - New Style for HK416 This part is the newer style pin that is goldish, super hardened, and much less prone to wear and tear. The enhanced version is the most robust, easiest-to-use pin available. Compatible...HKP-02658$19.95 -
HK UMP, USC Cocking Lever
H&K Heckler & Koch
$24.95HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USCHKP-01884$24.95 -
HK G36, SL8 Ambidextrous Sling Pin
H&K Heckler & Koch
$49.95HK German G36/SL8 Ambidextrous Sling Pin This part replaces all of the HK SL8 or G36 push pins with a loop for the sling. This can be moved to attach a sling on either the left or right sides with ease.HKP-00619$49.95 -
Out Of Stock
HK416, MR556 Ejection Port Cover Door Assembly
H&K Heckler & Koch
$89.95HK German HK 416, MR556 Ejection Port Cover Door Assembly Complete This is the newer polymer style cover found on the latest HK 416 and MR556's. This is the complete ejection port door assembly needed on all AR15 or MR556/HK416 models. Can also be used...HKP-16951$89.95 -
HK UMP, USC Cocking Handle Pin
H&K Heckler & Koch
$7.95HK UMP & USC Cocking Handle Pin Compatible With: HK UMP HK USCHKP-01885$7.95 -
HK MP5, MP5K, G36, HK33, HKK53, HK93, HK417 Magazine Release Bushing - Full Auto
MKE
$2.59MKE HK MP5/MP5K Magazine Release Bushing This part is for use in all 90-series H&K weapon systems and is used for installing a paddle mag release. This is not for use on semi-auto HK builds. This part is intended for full-auto conversions only...HKP-22283$2.59 -
HK VP9, VP9SK, VP40 Trigger Bar Spring - Complete
H&K Heckler & Koch
$51.95H&K HK VP9/VP9SK, HK VP40 Complete Trigger Bar Form Spring Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP9SK HK VP40HKP-16781$51.95 -
HK45, HK45 Compact, USP Trigger Bar Detent
H&K Heckler & Koch
$5.95Trigger Bar Detent Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP All USP Tactical, Elite & Expert...HKP-01922$5.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
$9.95HK MR556, HK 416 & MR762 & 417 Magazine Catch Spring HK German manufacture. Compatible With: HK MR556 HK 416, M27 HK MR762 HK 417, G28 AR15, M4 & M16 firearmsHKP-02620$9.95