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 G36, SL8 Ejector Spring
H&K Heckler & Koch
$35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.HKP-01867$35.95 -
HK MP5, AP5 Firing Pin
MKE
$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-22243$14.95 -
On Sale
HK MP5 Rear Sights Locking Washer
MKE
Now: $1.95Was: $2.45MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: Century Arms AP5 HK MP5/MP5K HK SP5/SP5K Will work with all 90 series firearmsHKP-22240Now: $1.95Was: $2.45 -
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...HKP-22182-M$24.95 -
Out Of Stock
HK MR556 A4 Hammer Spring
H&K Heckler & Koch
$5.00H&K MR556 A4 Hammer Spring Genuine H&K hammer spring for the MR556 A4. Compatible With: HK MR556 A4HKP-22083$5.00 -
HK VP9, VP9SK, VP40 Firing Pin Striker
HKP HK Parts
$39.95HKP HK VP9/VP9SK/VP40 Firing Pin Striker This firing pin fits all models of VP series pistols. Compatible With: HK VP9, VP9 tactical, VP9L, VP9 OR HK VP9SK VP40, VP40 tacticalHKP-20464$39.95 -
HK VP9, VP40 Grip Panel Right Side - Medium - Gray
H&K Heckler & Koch
$16.95H&K VP9, VP40 Grip Panel Right Side - Medium - Gray New HK German manufactured. Right side, medium size. Perfect for spare or for custom stippling projects. Drop-in part for your HK VP pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40HKP-18175$16.95 -
HK417, MR762 Cam Pin
H&K Heckler & Koch
$64.95H&K HK MR762/HK417 Cam Pin Compatible With: HK MR762 HK 417HKP-16844$64.95 -
HK P9S 9mm Extractor
H&K Heckler & Koch
$79.95HK P9S 9mm Extractor This extractor is no longer manufactured and is hard to find. This is the last remaining stock that HK had in inventory. Last call for this part.HKP-01997$79.95 -
HK UMP, USC Bolt Catch Spring
H&K Heckler & Koch
$8.95HK UMP & USC Bolt Catch Spring Compatible With: HK UMP HK USCHKP-01900$8.95 -
Out Of Stock
HK 21 (7.62x51/.308) Feed Mechanism Pawl
H&K Heckler & Koch
$69.95HK 21E & M13 Feed Mechanism PawlHKP-02071$69.95 -
HK MP5, AP5 Extractor Spring
MKE
$6.95MKE HK MP5, MP5K - Extractor Spring - 9mm Extractor spring for all 9mm HK variants including clones. This spring is the #1 repair & replacement item for the MP5 and MP5K family of firearms. Compatible With: HK MP5 HK MP5K HK SP5 HK SP5K HK94 HK...HKP-22481$6.95