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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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...HKP-02674$18.95 -
HK G36, SL8 Firing Pin
GSG9
$28.95HK G36, G36K, G36C & SL8 Firing Pin - USA A must have spare part for all G36 models. Made in the USA. Fully machined and nitrided for superior strength. Compatible With: G36 G36K G36C SL8HKP-18256$28.95 -
HK G36, SL8 Cocking Handle Axle Pin - USA
USA
$10.95HK G36, SL8 Cocking Handle Axle Pin - US Made This is the rivet pin that is used to attach the swiveling cocking handle to the body of the carrier. These can be replaced as they break and wear. Compatible With: HK G36 models HK SL8 modelsHKP-18367$10.95 -
HK USC, UMP Extractor - .40 S&W
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...HKP-00264$54.95 -
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 VP40HKP-16786$5.95 -
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)HKP-16601$16.95 -
HKP HK MP5 40 Locking Roller -4
HKP HK Parts
$11.95HK US MP540 Undersized Locking Roller, -4 The proper roller size is essential for proper headspacing of bolt gap. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for the bolt head. An easy way to remember the size you need...HKP-17561$11.95 -
HK416, MR556 Forward Assist Plunger Pin
H&K Heckler & Koch
$9.95H&K HK MR556/416 Forward Assist Plunger PinHKP-17542$9.95 -
On Sale
HK G36, SL8 Extractor
USA
Now: $39.95Was: $67.95G36 & HK SL8 Extractor For Bolt Head Compatible With: All G36 variants SL8-1, SL8-6HKP-18882Now: $39.95Was: $67.95 -
HK45C LEM Conversion Kit - Complete
H&K Heckler & Koch
$199.95New HK German HK 45 Compact LEM Conversion Kit Complete For All HK 45 Compact Pistols Use factory installed trigger return spring for the light LEM (4.5-5.5lb) and the supplied heavy trigger return spring for the heavy LEM conversion. This LEM conversion...HKP-01037$199.95 -
HK45 Recoil Rod and Spring - Complete
H&K Heckler & Koch
$104.95HK 45 Recoil Complete Rod w/ Spring This is the complete recoil guide assembly for the HK45 pistol. Great item to have on hand for repair or replacement. Compatible With: HK45 HK45 Tactical Please Note: This does not fit the USP .45...HKP-01667$104.95 -
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...HKP-01589$59.95