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 USC/UMP (.40 S&W) Extractor
H&K Heckler & Koch
$54.95HK German UMP Or USC .40 Extractor New HK German factory OEM part. This is a high wear and replacement item as the .40 cal cartridge has a high impulse that results in an increased occurrence of this extractor wearing out and breakage. A must-have...$54.95 -
Out Of StockOn Sale
AR-15 Firing Pin - Enhanced
Tactical Precision MFG
Now: $11.96Was: $24.99TPM AR-15 Enhanced Firing Pin These AR-15 firing pins are precision machined using CNC Swiss turning centers. The titanium AR-15 firing pin is made from Grade 6 titanium which has an ultimate tensile strength of 140,000 psi. titanium is 40% lighter than...Now: $11.96Was: $24.99 -
HK VP9, VP40 Grip Panel Right Side - Small - Black
H&K Heckler & Koch
$18.95H&K VP9, VP40 Grip Panel Right Side - Small - Black New HK German manufactured. Left side, medium size perfect for spare or for custom stippling projects. Drop-in part for your HK VP Pistol. Compatible With: HK VP9 HK VP9A1 F, VP9A1 K HK VP40$18.95 -
HK G36, SL8 Retaining Pin And O-Ring
H&K Heckler & Koch
$11.95Retaining Pin For Firing Pin Complete With O-Ring Compatible With: HK G36 HK SL8$11.95 -
HK416, MR556, HK417, MR762 Handguard Locking Screw
H&K Heckler & Koch
$16.95HK416, MR556, HK417, MR762 - Handguard Locking Screw Replacement handguard locking screw that secures the handguard to the upper receiver. Compatible With: HK HK416 HK MR556 HK HK417 (2 required per handguard) HK MR762 (2 required per handguard)$16.95 -
HK P30 Series Right Slide Release Lever
H&K Heckler & Koch
$44.95HK P30 Series Right Slide Release Lever$44.95 -
HK416, HK417, MR556, MR762 Disconnector
H&K Heckler & Koch
$18.95H&K HK MR556/MR762/416/417 Disconnector For Lower New HK German manufactured part. This is the latest generation of HK disconnector for the HK MR and HK 416/417 family of firearms. Compatible With: HK MR556 HK 416 HK MR762 HK 417 Please Note: HK...$18.95 -
HK VP9, VP40 Disassembly Lever Spring
H&K Heckler & Koch
$5.95Catch Spring For Disassembly Lever HK VP9, HK VP40 Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40$5.95 -
HK USP/45/45C New Style Bobbed Hammer
H&K Heckler & Koch
$59.95HK USP, USPC & HK45 & HK45C Bobbed Hammer - New Style This has the shorter, lower-profile "bobbed" hammer. The new style hammer has a cutout for 2005 and later production. Compatible With: USP 9mm & USP Compact 9mm USP 40 & USP Compact...$59.95 -
Out Of Stock
HK416, HK417, MR556, MR762 Disconnector Spring - Short
H&K Heckler & Koch
$4.95H&K HK MR556/MR762/416/417 Disconnector Spring - Short This is the shorter spring of the 2 found in the trigger assembly. Compatible With: HK MR556 HK 416 HK MR762 HK 417$4.95 -
HK UMP, USC 9mm / .40 S&W / .45 ACP QD Sling Pin for Stock Block B
HKP HK Parts
$74.95Quick Detach Sling Pin for Stock Block B - USC, UMP This Ambidextrous QD Sling Pin allows you to replace your Push Pin Style or Eyelet Sling Loop - Style Pin in your Stock Block B for use of a QD Sling.$74.95 -
Out Of Stock
HK -2 Roller For Bolt Head 7.98mm - Under-sized
H&K Heckler & Koch
$19.95H&K -2 Roller For Bolt Head 7.98mm - Under-sized The proper roller size is essential for proper head spacing and bolt gap. New HK German not surplus or used goods. German-made -2 roller. Please Note: The price listed is per roller. Order 2 (pair) for...$19.95