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 MP5 Extractor - .40 S&W / 10mm
RCM
$34.95MP5 40 & 10mm Extractor - US Made This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.HKP-01969$34.95 -
On Sale
HK MP5, 90 Series Holder Plate for Locking Rollers
MKE
Now: $24.95Was: $29.95MKE Roller Retainer Plate for Rollers This item is a common wear item that is great to have on hand as they are one of the top items that break or fail with use and age of the service weapon. Compatible With: HK MP5, 94 HK MP5K, SP89 HKG3, 91,...HKP-22235Now: $24.95Was: $29.95 -
HK MP5K Recoil Rod Assembly - 9mm
RCM
$54.95RCM HK MP5K Recoil Rod Assembly The recoil rod and spring assembly is a great item to have on hand for replacement and spares as this is a consumable part. Compatible With: HK MP5K NOT compatible with SP5K with the F-style recoil rod MP5K clones and...HKP-22203$54.95 -
Out Of Stock
HK MP5 Magazine Locking Plate - 30 Round
KCI
$3.49KCI HK MP5 Locking Plate Spare locking plate for KCI MP5 30 round magazines. Compatible With: HK MP5HKP-21377$3.49 -
HK MR762 Ejection Door Clamping Sleeve
H&K Heckler & Koch
$4.95H&K HK MR762 Ejection Door Clamping Sleeve Compatible With: HK MR762HKP-16518$4.95 -
HK P30L .40 S&W Complete Recoil Assembly
H&K Heckler & Koch
$109.95HK P30L .40 S&W Complete Recoil Assembly A genuine German Heckler & Koch part. Spare recoil assemblies are a great help to keep the pistol functioning as it was designed. Compatible With: HK P30L .40.HKP-02436$109.95 -
HK P2000, P2000SK Magazine Disconnect Elbow Spring
H&K Heckler & Koch
$9.95HK Magazine Disconnect Elbow Spring Compatible With: HK P2000 HK P2000SKHKP-02601$9.95 -
HK USP Compact Variant 4 Right Decock Control Lever
H&K Heckler & Koch
$34.95USPC - Decock Lever V4 - Decock Only Compatible with all USP Compact pistols and provides the V4 Decock ONLY (no safety function) when used with the Variant 3 & 4 Detent Plate. This is the correct lever for those who are "left-handed"...HKP-02264$34.95 -
HK (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28
USA
$74.95H&K (9mm) 4 Prong Pistol Flash Hider - Threaded 1/2x28 This flash hider enhances both the look and functionality of your firearm. Constructed from 4140 ordnance-grade steel, it is heat-treated and finished with a Melonite coating for...HKP-01965$74.95 -
HK416, MR556, MR762 Spring Lock Bolt
H&K Heckler & Koch
$9.99H&K HK MR556/MR762/416 Spring Lock Bolt Compatible With: HK MR556 HK 416 HK MR762 HK 417HKP-16848$9.99 -
HK416, MR556 Semi-Auto Hammer - Complete
H&K Heckler & Koch
$107.95H&K HK416, MR556 Semi-Auto Hammer - Complete Genuine German complete hammer and spring assembly. Includes: Semi-auto hammer Hammer spring Side bushing Compatible With: MR556A1 MR556 A4 HK416 AR-15 AR-15 style semi-auto firearms chambered in...HKP-02673$107.95 -
HK UMP Paddle Magazine Release - Extended
HKP HK Parts
$34.95UMP Paddle Magazine Release - Extended Billeted alloy UMP magazine release. This is a very common repair & replacement part as they are fairly easy to break on the UMP lower. With this new metal mag release you get more surface area as well as a much...HKP-17919$34.95