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 VP9, VP40 Disassembly Lever Spring
H&K Heckler & Koch
Now: $5.36Was: $5.95Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40Now: $5.36Was: $5.95 -
On Sale
HK USP/45/45C New Style Bobbed Hammer
H&K Heckler & Koch
Now: $53.96Was: $59.95HK USP, USPC & HK45 & HK45C Bobbed Hammer - New Style This has the shorter, lower-profile "bobbed" hammer. The new style hammer has a cutout for 2005 and later production. Compatible With: USP 9mm & USP Compact 9mm USP 40 & USP Compact...Now: $53.96Was: $59.95 -
Out Of StockOn Sale
HK416, HK417, MR556, MR762 Disconnector Spring - Short
H&K Heckler & Koch
Now: $4.46Was: $4.95H&K HK MR556/MR762/416/417 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417Now: $4.46Was: $4.95 -
On Sale
HK UMP, USC 9mm / .40 S&W / .45 ACP QD Sling Pin for Stock Block B
HKP HK Parts
Now: $59.96Was: $74.95Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a QD Sling.Now: $59.96Was: $74.95 -
Out Of StockOn Sale
HK -2 Roller For Bolt Head 7.98mm - Under-sized
H&K Heckler & Koch
Now: $17.95Was: $19.95H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...Now: $17.95Was: $19.95 -
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
HK45 Recoil Complete Rod w/ Spring
H&K Heckler & Koch
Now: $94.45Was: $104.95HK 45 Recoil Complete Rod w/ Spring This is the complete recoil guide assembly for the HK45 pistol. Great item to have on hand for repair or replacement. Compatible With: HK45 HK45 Tactical Please Note: This does not fit the USP .45...Now: $94.45Was: $104.95 -
On Sale
HK End Cap - Detent - Cocking Tube
H&K Heckler & Koch
Now: $4.46Was: $4.95HK German Cocking Tube End Cap/Dust Cap Detent HK German cocking tube detent for all steel and aluminum cocking tube end caps. Made of steel and finished in black.Now: $4.46Was: $4.95 -
On Sale
HK Mark 23 Rear Sight Retaining Screw
H&K Heckler & Koch
Now: $17.95Was: $19.95HK Mark 23 Rear Sight Retaining ScrewNow: $17.95Was: $19.95 -
On Sale
HK G36, SL8 Firing Pin
GSG9
Now: $26.05Was: $28.95HK G36, G36K, G36C & SL8 Firing Pin - USA A must have spare part for all G36 models. Made in the USA. Fully machined and nitrided for superior strength. Compatible With: G36 G36K G36C SL8Now: $26.05Was: $28.95 -
On Sale
HK MP5F, MP5 Compression Spring - Cocking Lever Support - 10mm / .40 S&W
H&K Heckler & Koch
Now: $8.96Was: $9.95H&K MP5F & MP5 40,10 Cocking Support Handle Spring One of these springs is required for use with the cocking handle/support assembly. You need the following - MP5 40 cocking tube support, MP5 40 cocking handle, and the cocking handle spring to...Now: $8.96Was: $9.95 -
On Sale
HK VP9, VP40 Grip Panel Right Side - Large - Black
H&K Heckler & Koch
Now: $17.95Was: $19.95H&K VP9, VP40 Grip Panel Right Side - Large - Black New HK German manufactured. Left side, medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 HK VP40 HK VP9A1 F HK VP9A1 KNow: $17.95Was: $19.95