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 Mark 23, SOCOM Block - Firing Pin
H&K Heckler & Koch
Now: $32.36Was: $35.95Heckler and Koch Firing Pin Block for Mark 23 and SOCOM This is the real deal and it is plated in nickel and made for the HK Mark 23 and SOCOM models. Compatible With: HK Mark 23 SOCOM ModelsNow: $32.36Was: $35.95 -
On Sale
HK45, HK45 Compact, P30, P30L Hammer Bearing
H&K Heckler & Koch
Now: $13.46Was: $14.95HK 30, P30L, 45, & 45C Hammer Bearing Compatible With: HK P30 HK P30L HK45 HK45 Compact Please Note: This item does not have the lockout device built in for those that prefer NOT to have the lockout feature.Now: $13.46Was: $14.95 -
On Sale
HK MP5, MP5K, G36, HK33, HKK53, HK93, HK417 Magazine Release Bushing - Full Auto
MKE
Now: $2.33Was: $2.59MKE HK MP5/MP5K Magazine Release Bushing This part is for use in all 90-series H&K weapon systems and is used for installing a paddle mag release. This is not for use on semi-auto HK builds. This part is intended for full-auto conversions only...Now: $2.33Was: $2.59 -
On Sale
HK Mark 23 Block Spring - Firing Pin
H&K Heckler & Koch
Now: $8.99Was: $9.99HK Mark 23 Firing Pin Block Spring Compatible With: Mark 23 Socom .45Now: $8.99Was: $9.99 -
On Sale
HK USP, USP Compact .45 ACP New Style Extractor
H&K Heckler & Koch
Now: $53.96Was: $59.95New Style Extractor New HK German part with red loaded chamber indicator. Compatible with: USP 45, USP 45 Tactical USP Compact .45, USPC .45 Tactical USP ExpertNow: $53.96Was: $59.95 -
On Sale
HK USP Left Side V1/5/9 Decocking Lever
H&K Heckler & Koch
Now: $53.99Was: $59.99H&K HK USP Left Side V1/5/9 Decocking Lever A Heckler and Koch genuine part. This item allows a right-handed shooter to have the safety and or decocking functions on the LEFT side of the firearm. This is to be used in conjunction with the correct...Now: $53.99Was: $59.99 -
On Sale
HK45, HK45 Compact, USP, USP Compact Sear Roll Pin
H&K Heckler & Koch
Now: $5.36Was: $5.95Sear Roll Pin HK USP 9mm .40 S&W .45 ACP HK USP Compact 9mm .40 S&W .357 SIG .45 ACP HK45 HK45 CompactNow: $5.36Was: $5.95 -
On Sale
HK416, MR556 Pin - Retaining - Ejector
H&K Heckler & Koch
Now: $6.25Was: $6.95H&K HK MR556/416 Ejector Retaining Pin This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part. Compatible With: HK MR556 HK 416Now: $6.25Was: $6.95 -
On Sale
HK VP, P30, P2000 Backstrap Pin Punch
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K VP/P30/P2000 Backstrap Pin Punch Pin punch designed for removing and installing the backstrap pin on select H&K pistol models. Sized at 7/64", this tool ensures a proper fit without damaging the frame or pin. Compatible With HK VP9/VP9SK HK...Now: $8.96Was: $9.95 -
On Sale
HK MP5, MP5K Extractor - 9mm - MKE
MKE
Now: $17.95Was: $19.95MKE HK MP5/K 9mm Extractor Keep your MP5 or MP5K running strong with this MKE 9mm extractor. Perfect for replacing a worn part or completing a build, it’s made to HK specs for smooth, reliable performance you can count on. Compatible With: HK...Now: $17.95Was: $19.95 -
On Sale
HK Torx Screw Set for Binary Selector Lever - Upgrade
HKP HK Parts
Now: $2.36Was: $2.95HKP Torx Binary Upgrade Screw Set Upgrade your binary selector levers with our Torx hardware set. Torx hardware is less likely to strip than standard allen key hardware. Good spares to have on hand as well. Note: Each set comes with 2 screws.Now: $2.36Was: $2.95 -
On Sale
HK417, MR762 Magazine Catch Spring
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K HK MR762/417 Magazine Catch Spring New HK German manufacture. Factory correct magazine catch for the magazine release. Compatible With: HK MR762 HK 417 HK G28Now: $8.96Was: $9.95