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 MP7, G36, SL8 Gas Block Pin
H&K Heckler & Koch
Now: $7.95Was: $8.95H&K HK G36/SL8/MP7 Gas Block Pin The G36/SL8/MP7 gas block pin is the largest out of HK's line up (UMP/USC, 415/MR556, 417/MR762).HKP-16727Now: $7.95Was: $8.95 -
On Sale
HK MP5, SP89, HK91, HK93, HK94 Grip Screw
H&K Heckler & Koch
Now: $7.95Was: $8.95H&K Grip Screw New HK grip screw that is now out of production. Great for a spare. Compatible With: HK91 HK93 HK94 SP89HKP-01725Now: $7.95Was: $8.95 -
Out Of Stock
HK416, MR556, HK417, MR762, AR-15 Selector Detent Spring
H&K Heckler & Koch
$9.99H&K HK MR556/MR762/416/417/AR15 Selector Detent Spring HK German manufacture. Compatible With: HK MR556 HK 416 HK MR762 HK 417 AR15, M4 & M16HKP-02657$9.99 -
On Sale
HK P7M8, P7M13 Retaining Roll Pin - Gas Piston
H&K Heckler & Koch
Now: $4.45Was: $4.95HK P7 M8, M13 Piston Retaining Roll PinHKP-16435Now: $4.45Was: $4.95 -
On Sale
HK UMP, USC Lower Axle
H&K Heckler & Koch
Now: $8.95Was: $9.95HK UMP & USC Lower Axle - German 3 X lower axle pins are used for each trigger group or lower all pins are the same size, except the mag release axle on the USC model.HKP-01893Now: $8.95Was: $9.95 -
On Sale
HK P30SK Firing Pin Safety Pin
H&K Heckler & Koch
Now: $4.45Was: $4.95H&K HK P30SK Firing Pin Safety Pin This is a factory original HK part manufactured in Germany.HKP-18524Now: $4.45Was: $4.95 -
On Sale
HK USP, USP Compact, P2000 Magazine Release Lever
H&K Heckler & Koch
Now: $11.95Was: $12.95Heckler and Koch Magazine Release Lever for HK USP and HK P2000 Compatible With: USP USP Compact 9mm USP Tactical, Elite, Expert both full size and compact P2000 P2000SKHKP-02480Now: $11.95Was: $12.95 -
On Sale
HK VP9, VP9SK, VP40 Sear Spring
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K VP9/VP9SK, VP40 Catch Pressure Spring Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16800Now: $8.95Was: $9.95 -
On Sale
HK45, HK45 Compact, USP Trigger Bar Detent
H&K Heckler & Koch
Now: $4.95Was: $5.95Trigger Bar Detent Compatible With: HK45, HK45 Tactical HK45C, HK45C Tactical HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45 ACP All USP Tactical, Elite & Expert...HKP-01922Now: $4.95Was: $5.95 -
On Sale
HK VP9, P40 Backstrap - Small
H&K Heckler & Koch
Now: $26.95Was: $29.95Heckler and Koch Small Black Backstrap for HK VP9, HK VP40 New HK German manufacture. Compatible With: VP9 VP40 VP9F VP9KHKP-16814Now: $26.95Was: $29.95 -
On Sale
HK G36, SL8 Ambidextrous Sling Pin
H&K Heckler & Koch
Now: $44.95Was: $49.95HK German G36/SL8 Ambidextrous Sling Pin This part replaces all of the HK SL8 or G36 push pins with a loop for the sling. This can be moved to attach a sling on either the left or right sides with ease.HKP-00619Now: $44.95Was: $49.95 -
On Sale
HK UMP, USC Cocking Lever
H&K Heckler & Koch
Now: $22.95Was: $24.95HK UMP & USC Cocking Lever New HK German part. Compatible With: HK UMP HK USCHKP-01884Now: $22.95Was: $24.95