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
M-LOK Rail Section - 5 Slot
Magpul
Now: $17.95Was: $18.95Magpul M-LOK 5 Slot Rail Section Designed for use with all M-LOK compatible Hand Guards and Forends, M-LOK Aluminum Rail Sections allow the attachment of various 1913 Picatinny spec rail-mounted accessories such as lights, vertical grips, etc. Machined...HKP-19568Now: $17.95Was: $18.95 -
On Sale
HK45, USP, P30, P2000 Hammer Spring - 12LB Stock
H&K Heckler & Koch
Now: $4.95Was: $5.9512LB Stock Hammer Spring This is the spring used in some custom trigger jobs, along with other trigger return and firing pin block springs. This spring can be used on the P30 along with the light trigger return spring and light firing pin block...HKP-01284Now: $4.95Was: $5.95 -
HK91, G3, HK33 Flash Hider Retaining Ring
H&K Heckler & Koch
$1.95HK Flash Hider Retaining Ring Brand new HK German manufacture. HK flash hider, muzzle break retaining ring. This item is the ring that fits inside the flash hider that indexes with the splines of the HK barrel to provide a positive lockup of...HKP-16451$1.95 -
On Sale
HK P30 Series Left Slide Release Shorty
H&K Heckler & Koch
Now: $58.95Was: $64.95HK P30 Series Left Slide Release Shorty This is the left side of the frame shorter slide release lever for the HK P30, P30L & P30SK version models. This shorter slide release lever is also the standard lever found on the P30S & P30SK models...HKP-02486Now: $58.95Was: $64.95 -
On Sale
HK USP, Mark 23 Recoil Assemblies Snap Ring
H&K Heckler & Koch
Now: $4.95Was: $5.95H&K HK USP/Mark 23 Recoil Assemblies Snap Ring The snap ring secures the spring onto the recoil buffer spring assembly. This part can come loose and become lost or easily worn. Once you remove them, HK suggests replacing them with a new snap ring...HKP-01258Now: $4.95Was: $5.95 -
On Sale
HK Roller Type Trip Lever
H&K Heckler & Koch
Now: $26.95Was: $29.95H&K Roller Type Trip Lever This is a genuine German Heckler & Koch part. This is the newer style trip lever for use with a roller sear catch, not the older friction type. Please Note: May or may not be marked with the X or XX...HKP-02466Now: $26.95Was: $29.95 -
On Sale
HK USP, USP Compact Trigger Spring
H&K Heckler & Koch
Now: $4.95Was: $5.95H&K HK USP/USPC Trigger Spring Compatible With: 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 ACPHKP-01252Now: $4.95Was: $5.95 -
Out Of Stock
HK MP5, MP5K Paddle Magazine Release - Anti-Rattle Roller Tipped - 9mm
HKP HK Parts
$29.47HKP HK Parts 9mm Anti-Rattle Roller Tipped Paddle Magazine Release for HK MP5 and MP5K Latest generation paddle mag release for all 9mm MP5, MP5K style builds. Made to the latest German specs, materials, and design. Compatible...HKP-17570$29.47 -
On Sale
HK VP9, VP9SK, HK VP40 Locking Block Pin
H&K Heckler & Koch
Now: $9.95Was: $10.95H&K HK VP9/VP9SK, HK VP40 Spring Pin, Dowel Pin For Locking Block HK German manufacture. A special spring pin that has an internal spring for support. A must have item as this roll pin can become damaged with install and removal. Compatible...HKP-16790Now: $9.95Was: $10.95 -
Out Of Stock
HK P30, HK45, USP Firing Pin Block - New Style
H&K Heckler & Koch
$16.95H&K USP/P30/HK45 New Style Firing Pin Block A factory Heckler and Koch part. Compatible With: HK USP 45, 40 & 9mm HK USP Tactical, Elite, Expert HK USP Compact 9mm, .40 & .45 HK USPC Tactical 9mm, .40 & .45 HK P30, P30L, P30S &...HKP-01285$16.95 -
HK416, MR556, MR762 Buffer Retainer Pin
H&K Heckler & Koch
$3.95Heckler and Koch HK416, HK MR556, HK MR762 Buffer Retainer Pin Compatible With: HK416, MR556 HK MR762HKP-12704$3.95 -
On Sale
HK Rear Sight Bearing
H&K Heckler & Koch
Now: $1.95Was: $1.99H&K Rear Sight Bearing Factory HK Part for all rear sight assemblies. This item is required for any HK diopter rear sight assemblies.HKP-00145Now: $1.95Was: $1.99