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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Out Of Stock
HK G36, SL8 Roll Pin - Gas Piston
H&K Heckler & Koch
$9.95H&K HK G36, HK SL8 Roll Pin for Gas PistonHKP-16386$9.95 -
On Sale
HK VP Series Trigger Housing with Ejector
H&K Heckler & Koch
Now: $44.95Was: $49.95H&K VP9/SK & VP40 Insert Housing w/ Ejector Insert housing with ejector for HK VP9 & VP40. Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16804Now: $44.95Was: $49.95 -
On Sale
HK Mark 23 Hammer Spring
H&K Heckler & Koch
Now: $9.95Was: $10.95HK Mark 23 Hammer SpringHKP-01587Now: $9.95Was: $10.95 -
On Sale
HK USP Firing Pin Block - Old Style
H&K Heckler & Koch
Now: $26.95Was: $29.95HK USP Series Old Style Firing Pin Block Compatible With: HK USP 45 HK USP 40 HK USP 9mm HK USP Compact 9mm HK USP Compact 357 HK USP Compact 40 HK USP Compact 45HKP-01926Now: $26.95Was: $29.95 -
Out Of Stock
MLOK LINK Rail Section - 7 Slots - QD
Strike Industries
$25.95Strike Industries M-LOK & Key Mod Universal Rail - 7 Slots Strike Industries LINK attachment system takes the age old question Key-Mod vs. M-LOK and came up with the ultimate solution, a dual interface design compatible with both M-LOK and Key-Mod,...HKP-17594$25.95 -
On Sale
HK CC9 Slide Cover Plate
H&K Heckler & Koch
Now: $8.95Was: $9.95H&K CC9 Slide Cover Plate Made in Germany by H&K, the slide cover plate for the CC9 pistol retains the firing pin assembly within the slide. Compatible With: HK CC9HKP-22135Now: $8.95Was: $9.95 -
On Sale
HK417, MR762 Charging Handle Catch
H&K Heckler & Koch
Now: $53.95Was: $59.95HK MR762, HK417 Extended Charging Handle Catch Complete New HK German manufacture. A great part to have on hand as these are prone to breakage and wear. Compatible With: HK MR762 HK 417 HK G28HKP-16852Now: $53.95Was: $59.95 -
On Sale
HK45, P30SK Safety Lever Compression Spring
H&K Heckler & Koch
Now: $5.95Was: $6.95HK 45 & P30SK Lockout Compression Spring Compatible With: HK45 HK45 Compact HK P30SKHKP-02272Now: $5.95Was: $6.95 -
On Sale
HK USP, Mark 23 Magazine Locking Plate - .45 ACP - 10 Round
H&K Heckler & Koch
Now: $4.95Was: $5.9510 Round Magazine Locking Plate Compatible With: HK USP 45 ACP 10 round magazine HK Mark 23 10 round magazineHKP-01591Now: $4.95Was: $5.95 -
On Sale
HK USP Firing Pin - New Style - Titanium
HKP HK Parts
Now: $42.95Was: $49.95HKP HK USP New Style Titanium Firing Pin A solid billet CNC offering at 40+% lighter than comparable steel firing pins. Our titanium firing pins travel faster in the slide, delivering a quicker lock time & enhancing accuracy. Titanium pins also carry...HKP-17826Now: $42.95Was: $49.95 -
On Sale
HK G36, SL8 Sling Pin Retaining Clip for Handguards
H&K Heckler & Koch
Now: $8.95Was: $9.95HK G36 & SL8 Sling Pin Retaining Clip Compatible With: HK G36 HK G36K- older version only HK SL8-1 , SL8-6 Factory ForearmHKP-16366Now: $8.95Was: $9.95 -
On Sale
HK MP5 Locking Roller +4 - .40 S&W, 10mm
H&K Heckler & Koch
Now: $18.95Was: $20.95H&K Heckler and Koch New +4 roller for HK MP5 40/10 Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller...HKP-00335Now: $18.95Was: $20.95