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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HK45, HK45C, USP Compact Magazine Locking Plate
H&K Heckler & Koch
$7.95HK USPC, 45, & 45C Magazine Locking Plate New factory German HK. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical HK USPC .45 HK USPC .45 Tactical$7.95 -
HK G36, SL8 Pin - Axle - Cocking Handle
H&K Heckler & Koch
$11.95HK German G36 & SL8 Cocking Handle Axle Pin 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 HK SL8$11.95 -
Handguard Rail Screw - Tactical
PTR
$0.69PTR Tactical Handguard Rail Screw The 6, 4, 3 & 2 inch rail sections use these screws to attach themselves to the tactical forearm. This is the screw that is used on all the tactical forearm rails (2 inch, 3 inch, 4 inch, 6 inch). A great spare to...$0.69 -
HK MP5 Barrel Retaining Pin - 5.015mm
H&K Heckler & Koch
$14.95H&K 90 Series Barrel Retaining Pin - 5.015mm Each barrel pin is used for installing a new or replacement barrel. HK suggests using a new factory barrel pin when installing or reinstalling an HK barrel. Compatible With: HK MP5, SP5, MP5K,...$14.95 -
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 as well. Note: Each set comes with 2 screws.$2.95 -
HK45, HK45C Detent Plate - Variant 5,6,9
H&K Heckler & Koch
$54.95H&K Detent Plate New HK German manufacture safety ONLY detent plate. This detent plate will convert the firearm to safety only with no decocking functions. Compatible With: HK45 HK45 Tactical HK45C HK45C Tactical$54.95 -
HK P30 Series Left Slide Release Lever
H&K Heckler & Koch
$54.95Slide Release Lever Left - P30 Latest HK production. Compatible With: P30 P30SK$54.95 -
HK45, HK45 Compact, P30, P30L Hammer Bearing
H&K Heckler & Koch
$14.95HK 30, P30L, 45, & 45C Hammer Bearing Compatible With: HK P30 HK P30L HK45 HK45 Compact Please Note: This item does not have the lockout device built in for those that prefer NOT to have the lockout feature.$14.95 -
Out Of Stock
HK45, USP New Style Hammer Strut
H&K Heckler & Koch
$12.95H&K HK USP/45 New Style Hammer Strut Compatible With: HK USP 45 HK USP 40 HK USP 9mm HK USP Tactical, Elite, Expert HK45 HK45 Tactical$12.95 -
Out Of Stock
HK SL8, G36 Rod Spring - Gas Piston
H&K Heckler & Koch
$59.95HK German G36 & SL8 Gas Piston Rod Spring Assembly Great for spare parts or to use on that HK SL8-G36 conversion. This is a high-wear item and a must-have spare part. Compatible With: SL8-6, SL8-1 G36E, G36 full size$59.95 -
HK MP5, MP5K Extractor - 9mm - MKE
MKE
$19.95MKE HK MP5/K 9mm Extractor Keep your MP5 or MP5K running strong with this MKE 9mm extractor. Perfect for replacing a worn part or completing a build, it’s made to HK specs for smooth, reliable performance you can count on. Compatible With: HK...$19.95 -
HK45, HK45 Compact, USP, USP Compact Sear Roll Pin
H&K Heckler & Koch
$5.95Sear Roll Pin HK USP 9mm .40 S&W .45 ACP HK USP Compact 9mm .40 S&W .357 SIG .45 ACP HK45 HK45 Compact$5.95