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
HK USP V1, V2 Old Style Complete Hammer
H&K Heckler & Koch
Now: $69.95Was: $79.95HK USP V1/V2 Old Style Complete Hammer HK USP complete with pin - hammer variant 1, 2, and 9. Old style all metal USP spurred hammer.HKP-01602Now: $69.95Was: $79.95 -
HK416, MR556 Ejector Retaining Pin
H&K Heckler & Koch
$5.95H&K Heckler and Koch's Ejector Retaining Pin for your HK416 and HK MR556 This factory HK German part is the pin that holds the ejector in place on the bolt head. Great to have as a spare part...HKP-00053$5.95 -
$7.95 -
Out Of Stock
HK USP Recoil Spring Washer Retainer - Front
H&K Heckler & Koch
$14.95H&K HK USP Recoil Spring Washer Retainer This is the tapered washer that supports and keeps the recoil spring centered and captive on the recoil rod itself. Compatible With: <HKP-17060$14.95 -
HK USP Compact Right to Left Handed Control Lever V2, V6, V10
H&K Heckler & Koch
$39.95For Variant 2, 6, And 10 - Right Side Selector Lever For Left Handed Shooter The lever you need to swap right to left-handedHKP-01434$39.95 -
HK UMP, USC Lower Locking Pin
H&K Heckler & Koch
$36.95HK German UMP Lower Locking Pin For use with all HK UMP lowers and USC to UMP conversions. New HK German manufacture.HKP-00595$36.95 -
HK Torx Screw Set for Binary Selector Lever - Upgrade
HKP HK Parts
$2.95HKP Torx Binary Upgrade Screw Set Upgrade your binary selector levers with our Torx hardware set. Torx hardware is less likely to strip than standard allen key hardware. Good spares to have on hand...HKP-21816$2.95 -
HK45, P30, USP, USP Compact, P2000 Hammer Spring
H&K Heckler & Koch
$9.95Hammer Spring This is the stock hammer spring for many P30 models and is used for the heavy TGS and heavy and light LEM conversions on the USP, USPC, P30 & HK45 models. Compatible With:HKP-01804$9.95 -
On Sale
HK MP5 Rear Sights Locking Washer
MKE
Now: $1.46Was: $2.45MKE HK MP5 Rear Sights Locking Washer Secures the rear sight assembly on MKE and HK MP5 models to maintain proper alignment. Compatible With: CeHKP-22240Now: $1.46Was: $2.45 -
HK 90's Series Compression Rod - Titanium
HKP HK Parts
$29.95Compression Rod - 90's Series - Titanium The H&K burst trigger pack compression rods and compression rod springs are the foremost wear/breakage components in burst packs. This replacement compression...HKP-20887$29.95 -
Out Of Stock
HK UMP Magazine Release Axle
H&K Heckler & Koch
$19.95Heckler and Koch Magazine Release Axle for HK UMP Replacement magazine release axle for HK UMP platforms. This component is commonly replaced due to wear or breakage and may also be required when...HKP-02159$19.95 -
HK MP5, AP5 Firing Pin
MKE
$14.95MKE HK MP5/AP5 Firing Pin - 9mm MKE firing pin for HK MP5 platforms. Compatible With: HK MP5/SP5 Century Arms AP5/AP5PHKP-22243$14.95