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 416, MR566, HK417 MR762 Buffer Retainer
HK HAUS
$9.95HK 416/417 Buffer Retainer New HK USA manufacture for the HK 416 / 417 family of firearms. Made from stainless steel.$9.95 -
HK P30SK, P2000SK Hammer Spring
H&K Heckler & Koch
$9.95HK German Hammer Spring This spring is used with LEM and all standard models. Compatible With: P2000SK P30SK$9.95 -
Out Of Stock
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...$5.95 -
HK45, HK45 Compact, USP, USP Compact New Style Hammer
H&K Heckler & Koch
$55.95H&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...$55.95 -
HK45, P30, P2000, USP Stop Disc - Recoil Spring
H&K Heckler & Koch
$4.95HK 45, P30, P2000, & USPC Recoil Spring Washer Retainer This disk supports and keeps the recoil spring centered and captive on the recoil rod itself. Compatible With: HK45, HK45 Tactical HK45 Compact, HK45 Compact Tactical USP Compact, USP...$4.95 -
HK91, G3, PTR 91 Spare Parts Kit
HKP HK Parts / Heckler & Koch
$149.95HKP HK G3, HK 91, PTR 91 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK G3 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required...$149.95 -
HK VP9, VP9SK, VP40 Firing Pin Spring
H&K Heckler & Koch
$9.95H&K HK VP9/VP9SK, VP40 Main Spring For Firing Pin German HK. Compatible With: VP9 VP9 Tactical VP9SK VP40 VP40 Tactical$9.95 -
HK P7M8, P7M13 Detent - Gas Piston
H&K Heckler & Koch
$9.95H&K HK P7M8/P7M13 Detent, Piston Compatible With: P7M8 P7M13$9.95 -
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 firearms$9.95 -
On Sale
HK VP9, VP40 Enhanced Support Sleeve - Black - BLEMISHED
HKP HK Parts
Now: $7.46Was: $19.95HKP HK VP9/VP40 Enhanced Support Sleeve COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The support sleeve in the VP series pistols is a crucial component that...Now: $7.46Was: $19.95 -
HK USP, USP Compact Lanyard Loop Insert
H&K Heckler & Koch
$13.95HK USP/USPC Lanyard Loop Insert Compatible With: HK USP 9mm HK USP .40 HK USP Compact 9mm HK USP Compact .40 / .357 HK USP Compact .45$13.95 -
HK UMP, G36 Sear Spring
H&K Heckler & Koch
$8.95HK UMP, USC, G36, & SL8 Sear Spring This part is used in conjunction with the sear in the trigger body of the lower.$8.95