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 USP Jet Funnel Magazine Spring - 9mm, .40 S&W
H&K Heckler & Koch
$9.95Heckler and Koch Jet Funnel 9mm and .40 S&W for HK USP Magazine Spring Latest Production Longer, Stronger Spring for All HK Jet funnel Magazines. Limited supplies are available on this hard-to-find spring. Great replacement for all HK...HKP-02508$9.95 -
HK MP5, HK90 Series Hammer - Full Auto - Used
H&K Heckler & Koch
$29.95Hammer, Full Auto HK 90 Series Trigger Packs - German HK - Used German HK Hammer- used, surplus in VG-EXC shape and in perfect working order. This hammer is the hammer that is most commonly used in semi auto trigger packs as the secondary sear catch is...HKP-21442$29.95 -
Out Of Stock
HK USP, USP Compact Match Hammer
H&K Heckler & Koch
$103.95HK Match Hammer This is the factory-correct match hammer marked with the factory-correct "S" marking on the left-hand side of the hammer. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W...HKP-02602$103.95 -
HK VP9, VP40, USP Series, P Series Magazine Spring - 10 Round
H&K Heckler & Koch
$6.95New German HK Magazine Spring For 10 Round Magazines A must-have part as magazine springs are high wear and a common replacement item. Compatible With: HK USP 9mm HK USP 40 S&W HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK...HKP-01428$6.95 -
HK VP9, VP9SK Cocking Aid Filler Left, Right Set
H&K Heckler & Koch
$19.95Cocking Aid Filler Piece Set For - HK VP9, VP9SK HK VP9/VP9SK Filler set replaces the cocking aids for a "flat" cocking area rather than raised cocking aids as comes standard on the HK VP9 pistol. These are a drop in part for the HK VP9 pistol. Brand new...HKP-17213$19.95 -
HK45, HK45C, USP Roll Pin - Ambi Control Lever
H&K Heckler & Koch
$2.95HK USP, 45 & 45C Ambidextrous Control Lever Set Roll Pin This item is to hold the right side lever onto the left side axle lever. These can easily be lost or damaged. A great spare part to have on hand. Compatible With: HK USP Full...HKP-02394$2.95 -
HK Universal Hammer Spring
H&K Heckler & Koch
$9.95New HK German Rifle Hammer Spring For All.308/.223 Semi & Full Auto Trigger Packs The 308/556 hammer spring is a popular upgrade to replace the hammer spring in 9mm and clones that have light primer hits. This is the factory-correct 25 lb. weight for...HKP-00194$9.95 -
HK416, MR556, HK417, MR762 Takedown Pin Detent Spring
H&K Heckler & Koch
$9.95H&K HK MR556/MR762/416/417 Takedown Pin Detent Spring New HK German manufacture. Detent spring for the rear takedown pin. Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-02541$9.95 -
HK VP9, VP9SK, VP40 Enhanced Slide Cap - Red
HKP HK Parts
$29.95Enhanced Slide Plate Cover VP9, VP9SK & VP40 - HK Red Enhanced HK VP9, VP40 Alloy Slide Plate. This enhanced model covers has no firing pin viewing window and is enlarged as MUCH as possible to seal the firearm from dirt and debris. That can enter...HKP-17857$29.95 -
HK45, HK45C, P30, P2000 , USP Flat Spring
H&K Heckler & Koch
$9.95HK Flat Spring For Sear Catch This is a wear and replacement item on your HK pistol. A great spare part and needed spring to have on hand. Compatible With: HK USP 9mm HK USP .40 HK USP .45 HK USP Tactical, Elite, Expert HK USP Compact 9mm HK USP Compact...HKP-01259$9.95 -
HK VP9 Trigger Return Spring for Ultra Match Trigger
HKP HK Parts
$9.95HKP HK VP9 Ultra Match Trigger Return Spring Ultra Match trigger return spring will give your VP9 and VP40 an even smoother, crisper, and lighter pull. This helps promote consistent match-grade accuracy and control by dropping the trigger pull...HKP-21164$9.95 -
HK P7 Series Firing Pin Spring
H&K Heckler & Koch
$7.95HK P7 Series Firing Pin Spring This item is a great spare to keep on hand, as this item is considered a high-wear item by HK. Compatible With: HK P7 PSP HK P7 M8 HK P7 M10 HK P7 M13HKP-00326$7.95