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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HK91, G3 Firing Pin Spring
H&K Heckler & Koch
$9.95HK German HK G3, HK91, & PTR Firing Pin Spring This is a common repair and replacement item and is great for spares as this is a common breakage part.HKP-00498$9.95 -
HK45, P30, P2000 Backstrap Roll Pin
H&K Heckler & Koch
$5.95HK P30, 45, & P2000 Backstrap Roll Pin This is the commonly replaced roll pin for the rear backstrap that you can swap and change to different sizes. Great spare to have on hand when doing maintenance on your HK pistol. HK suggests...HKP-02274$5.95 -
HK MP5, HK53 Locking Roller for Bolt Head - 9mm - 8.02mm
H&K Heckler & Koch
$39.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please Note: The price listed is per roller...HKP-00507$39.95 -
Out Of Stock
HK MP5, HK94 Firing Pin
H&K Heckler & Koch
$49.95H&K MP5, HK94, MP5K, SP89 & SP5K Firing Pin - German Compatible With: MP5 HK94 MP5K SP89 SP5KHKP-00061$49.95 -
HK MP5 A3 Retractable Buttstock Buffer
H&K Heckler & Koch
$27.95H&K Heckler and Koch A3 Buffer - Stock - Retractable Stock Buffer for HK MP5 These common wear items need to be replaced when they become yellow, brittle, and worn. Inspect your buffer for the following: discoloration, the buffer becomes hard and...HKP-00074$27.95 -
Out Of Stock
HK VP9, VP9SK, VP40 Slide Release Spring
H&K Heckler & Koch
$9.95H&K VP9/VP9SK, VP40 Slide Release Pressure Spring Pressure Spring for Slide Release HK VP9, HK VP40. Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP40HKP-16788$9.95 -
HK MP5 .22 Sling Clip Kit
HKP HK Parts
$24.95HKP HK MP5 .22 Sling Clip Kit Each unit will fit all models of the MP5 .22 that have the 3 mounting holes on the left side of the magwell. This item installs in a few mins and comes complete with all you need for the install. With the addition of this...HKP-15706$24.95 -
HK Roller +7 - New - 8.07mm
HKP HK Parts
$8.99Roller +7 - New - 8.07mm HK Parts Standard (8.07 mm) locking roller, The proper roller size is essential for proper bolt gap. US Manufacture. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to...HKP-19442$8.99 -
HK MP5, HK90 Series Hammer Axle for Trigger Pack
H&K Heckler & Koch
$2.77H&K 90 Series Hammer Axle For Trigger Pack HK German used hammer axle for the 90 series style of trigger packs. Each axle pin or pivot pin measures .237 inches (6.0mm). A great spare and must have spare part for anyone that owns an HK 90 series of...HKP-15444$2.77 -
HK45C, P30, USP Compact Firing Pin Spring
H&K Heckler & Koch
$8.95HK P30/USPC/45C/P2000 Firing Pin Spring A must have spare replacement part to keep on hand and to swap out during pistol servicing. Compatible With: HK USP Compact 9mm HK USP Compact 40 & .357 HK USP Compact 45 HK P2000 Series HK P2000SK Series HK...HKP-01502$8.95 -
HK P7 Series Pistol Grip Screw
H&K Heckler & Koch
$8.95Heckler and Koch Grip Screw for HK P7 Series HK German P7 series factory grip screw for the left or right side grip. The grip screw commonly strips out or can lose its new finish with use. This part is a great spare to have on hand...HKP-01229$8.95 -
HK416, MR556 HK417, MR762 Firing Pin Spring
H&K Heckler & Koch
$14.95H&K MR556/MR762/416/417 Firing Pin Spring This part is great to have on hand as this item is a high wear and replacement part and one of the most common breakage parts on the HK 416/MR556 rifles. Compatible With: HK MR556 HK 416 HK MR762 HK 417 HK...HKP-00928$14.95