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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On Sale
HK Universal Hammer Spring
H&K Heckler & Koch
Now: $8.95Was: $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-00194Now: $8.95Was: $9.95 -
On Sale
HK45, HK45C, P30, P2000 , USP Flat Spring
H&K Heckler & Koch
Now: $8.95Was: $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-01259Now: $8.95Was: $9.95 -
On Sale
HK VP9, VP9SK, VP40 Enhanced Slide Cap - Red
HKP HK Parts
Now: $23.95Was: $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-17857Now: $23.95Was: $29.95 -
On Sale
HK VP9 Trigger Return Spring for Ultra Match Trigger
HKP HK Parts
Now: $8.95Was: $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-21164Now: $8.95Was: $9.95 -
On Sale
HK P7 Series Firing Pin Spring
H&K Heckler & Koch
Now: $6.95Was: $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-00326Now: $6.95Was: $7.95 -
On Sale
HK G36, SL8 Locking Push Pin for Handguards, Lowers, Magwells
H&K Heckler & Koch
Now: $31.95Was: $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-00804Now: $31.95Was: $34.95 -
On Sale
HK MP5, HK90 Series Buttstock Push Pin - Sling Hook - Ambi
H&K Heckler & Koch
Now: $39.95Was: $43.95H&K Ambidextrous Stock Sling Pin - Large The ambidextrous sling hook push pin replaces the stock push pin on the rear stock of the HK firearm, to enable the use of an HK sling for both left and right hand use. This part will replace and work on any...HKP-00078Now: $39.95Was: $43.95 -
On Sale
HK P7 Series Extractor Spring
H&K Heckler & Koch
Now: $6.95Was: $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-00325Now: $6.95Was: $7.95 -
On Sale
HK33, HK53, HK93, HK91, G3 Bolt Locking Lever Spring for Bolt Head
H&K Heckler & Koch
Now: $4.45Was: $4.95HK Bolt Carrier Bolt Locking Lever Spring New HK German factory bolt carrier locking lever spring for locking lever latch. Compatible With: HK G3, HK91 PTR models HK93, 33, 53 Other clones and custom buildsHKP-16274Now: $4.45Was: $4.95 -
HK91, G3 Magazine Release - Anti-Rattle - Surplus
H&K Heckler & Koch
$24.95Heckler and Koch Anti-Rattle Mag Release from Surplus for HK G3, HK91, PTR, HK33, HK53, HK93 Pulled from demilled German HK firearms. Once refinished this item can be made to look like new. For install on all HK Rifles caliber .223 and .308. This is the...HKP-17855$24.95 -
On Sale
HK USP Compact Optic Plate - Burris FastFire - Red Dot Pistol Mount
HKP HK Parts
Now: $42.95Was: $49.95HKP HK USPC Red Dot Pistol Mount Red Dot mounting plate to allow the use of a Burris Fast Fire, Docter, Vortex Venom or other similar specs Red Dot Sights. Replaces rear sight to allow the mounting of a Red Dot Sight to your HK pistol listed above...HKP-18899Now: $42.95Was: $49.95 -
HK G3 Buffer Screw Crush Washer
H&K Heckler & Koch
$0.95HK G3 Crush Washer For Buffer ScrewHKP-16984$0.95