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
HK416, MR556, HK417, MR762 Disconnector
H&K Heckler & Koch
Now: $17.95Was: $18.95Heckler and Koch HK416, MR556, HK417, MR762 Disconnector for Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK HK416 and HK417 family of firearms. Compatible With: HK416, MR556 HK417,...HKP-02674Now: $17.95Was: $18.95 -
On Sale
HK MP7, G36, Bolt O-Ring - Firing Pin - US
USA
Now: $4.95Was: $5.95HK G36 & MP7 Firing Pin Bolt O-ring. This is also the O-ring for the retaining pin for the MP7- US. Compatible With: HK G36 HK MP7HKP-18373Now: $4.95Was: $5.95 -
On Sale
HK SL8 Optic Screw - Adjusting - Dual and Single Optics
H&K Heckler & Koch
Now: $13.95Was: $14.95HK SL8 Dual and Single Adjusting Optic ScrewHKP-16387Now: $13.95Was: $14.95 -
Handguard Rail Screw - Tactical
PTR
$0.95PTR Tactical Handguard Rail Screw The 6, 4, 3 & 2 inch rail sections use these screws to attach themselves to the tactical forearm. This is the screw that is used on all the tactical forearm rails (2 inch, 3 inch, 4 inch, 6 inch). A great spare to...HKP-16744$0.95 -
On Sale
HK MP5, AP5 Firing Pin
MKE
Now: $12.95Was: $14.95MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5P Zenith ZF-5/ZF-5K PTR 9CT/9KTHKP-22243Now: $12.95Was: $14.95 -
On Sale
HK VP9, VP40 Disassembly Lever Spring
H&K Heckler & Koch
Now: $4.95Was: $5.95Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40HKP-16786Now: $4.95Was: $5.95 -
On Sale
HK P30 Series Right Slide Release Lever
H&K Heckler & Koch
Now: $40.95Was: $44.95HK P30 Series Right Slide Release LeverHKP-01880Now: $40.95Was: $44.95 -
Out Of Stock
HK416, MR556 Forward Assist Plunger Pin
H&K Heckler & Koch
$9.95H&K HK MR556/416 Forward Assist Plunger PinHKP-17542$9.95 -
On Sale
HK G36, SL8, USC, UMP Sight Screw - Rear
H&K Heckler & Koch
Now: $17.95Was: $19.95HK G36, SL8 & USC, UMP Rear Sight Screw Rear sight screw to retain HK G38/Sl8 & USC/UMP rear sights housings to the rear sight base. Compatible With: G36, SL8 USC, UMPHKP-16382Now: $17.95Was: $19.95 -
On Sale
HK USC, SL8 Sight Support Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K USC/SL8 (.45 ACP/5.56/.223) Rear Sight SpringHKP-16516Now: $8.95Was: $9.95 -
Out Of Stock
HK416, MR556, HK417, MR762 Takedown Pin - Rear - A4 Style
H&K Heckler & Koch
$43.95H&K MR556, HK416, HK417, MR762 Rear Takedown Pin Factory A4 rear takedown pin. Will work for A1 and A4 applications. Compatible With: HK MR556 A1 and A4 HK416 HK MR762 A1 and A4 HK417 AR-14, M4, M16HKP-22029$43.95 -
On Sale
HK Mark 23 Rear Sight Retaining Screw
H&K Heckler & Koch
Now: $17.95Was: $19.95HK Mark 23 Rear Sight Retaining ScrewHKP-01628Now: $17.95Was: $19.95