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 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 -
HK VP9, P Series Extractor
H&K Heckler & Koch
$54.95HK VP9/P Series Extractor Brand new factory HK German with red loaded chamber indicator present. Compatible With: HK VP9, VP9 Tactical, VP9SK HK VP9A1 F, VP9A1 K HK P30, P30L, P30S & P30SK HK P2000 HK P2000SKHKP-01615$54.95 -
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 -
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, 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 -
HK Ambidextrous Sling Pin O-Ring
H&K Heckler & Koch
$1.95H&K Ambidextrous Sling Pin O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. This item is a common wear/breakage part that does need to be replaced from time to time. This is the part that creates the + seal to keep...HKP-01090$1.95 -
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 -
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 -
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 G36, SL8 Push Pin - Fits Handguard, Lower, Magwell
H&K Heckler & Koch
$34.95New HK German G36 & HK SL8 Push Pin For Forearm, Mag Well Or Lower Each push pin is a factory German part and is new. This is also required for those doing the SL8 to G36 style conversions. A factory German G36 uses three of these factory push pins...HKP-00804$34.95 -
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 P7 Series Extractor Spring
H&K Heckler & Koch
$7.95HK P7 Extractor Spring This is a common wear and replacement part, according to HK Germany. This is a great part to have on hand as a spare. Compatible With: P7 PSP P7 M8 P7 M10 P7 M13HKP-00325$7.95