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
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
Now: $39.95Was: $49.95HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...HKP-17771Now: $39.95Was: $49.95 -
HK Bolt Locking Lever Pin - Cylindrical Pin
H&K Heckler & Koch
$4.95Heckler and Koch Bolt Locking Lever Pin/Cylindrical Pin New HK91, G3, PTR-91 .308 & HK 93, 33, 53 Bolt Carrier Bolt Locking Lever pin (cylindrical pin). This item holds the locking lever & spring in place on the actual bolt head.HKP-16913$4.95 -
On Sale
HK P30, P2000 Hammer Strut
H&K Heckler & Koch
Now: $22.95Was: $24.95HK P2000 & P30 Hammer Strut Compatible With: HK P2000 HK P30HKP-01621Now: $22.95Was: $24.95 -
On Sale
HK P Series Catch
H&K Heckler & Koch
Now: $21.95Was: $23.95HK P Series Catch Compatible With: HK P30 HK P30L HK P30SK HK P2000 HK P2000SKHKP-01796Now: $21.95Was: $23.95 -
On Sale
HK USP Retainer Roll Pin, Buffer Spring - .45 ACP
H&K Heckler & Koch
Now: $6.95Was: $7.95HK USP .45 ACP Buffer Spring Retainer Roll PinHKP-02267Now: $6.95Was: $7.95 -
Out Of Stock
HK G36, SL8 Recoil Buffer - Factory
H&K Heckler & Koch
$20.95HK G36 Or SL8 Factory Recoil Buffer A critical spare part as these buffers deteriorate with usage and time.HKP-00290$20.95 -
On Sale
HK G36, SL8 Extractor Axle
H&K Heckler & Koch
Now: $8.95Was: $9.95HK G36 & SL8 Extractor Axle This part can become heavily worn and is prone to breakage. Compatible With: HK G36 models HK SL8 modelsHKP-01895Now: $8.95Was: $9.95 -
On Sale
HK G36, SL8 Ejector Spring
H&K Heckler & Koch
Now: $32.95Was: $35.95HK G36 & SL8 Series Ejector Spring - HK German This is a great item to have on hand as this part is prone to wear and breakage.HKP-01867Now: $32.95Was: $35.95 -
On Sale
HK45, USP Magazine Spring - Extended
HKP HK Parts
Now: $10.95Was: $11.95HK45/USP Extended Magazine Spring .45 ACP Replacement spring for +7 and +10 HK Parts magazine extensions. Compatible With: HK45/HK45 Compact HK USPHKP-22299Now: $10.95Was: $11.95 -
On Sale
HK UMP, USC Sling Pin, Stock Block B
HKP HK Parts
Now: $42.95Was: $49.95HKP HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin The original thumb screw version for all stock block B's.HKP-21504Now: $42.95Was: $49.95 -
On Sale
HK45, HK 45 Tactical Backstrap - Small - Black
H&K Heckler & Koch
Now: $13.95Was: $14.95H&K 45/45 Tactical Backstrap - Small - Black New HK Manufacture. This item allows you to customize the way your firearm feels in your hand. As this is the smaller backstrap it is an excellent choice for smaller hands or female shooters. Compatible...HKP-01672Now: $13.95Was: $14.95 -
On Sale
HK45, HK45C Detent Plate for Variant 1, 2
H&K Heckler & Koch
Now: $13.95Was: $14.50Detent Plate For HK45, HK45C Variant 1, 2 Compatible With: HK45 HK45 CompactHKP-01807Now: $13.95Was: $14.50