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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HK21E, HK23E Rear Sight Base
HKP HK Parts
$38.95HKP HK21E/23E Rear Sight Base US manufactured billeted from solid ordnance grade bar stock. Each unit is precisely machined to factory tolerances. Requires post installation machining to accommodate a scope. Compatible With: HK21E HK23E$38.95 -
HK VP9, VP9SK, VP40 Polymer Support Sleeve
H&K Heckler & Koch
$8.95H&K HK VP9/VP9SK, VP40 Polymer Support Sleeve - Black New HK German VP9 & VP40 support sleeve made of polymer. A great replacement part to have on hand as they are easily marred when you depress the sleeve to access the firing pin or slide plate...$8.95 -
HK USP V2, V6, V10 LH Control Lever
H&K Heckler & Koch
$43.95New HK German USP Full Size Control Lever For Variants 2, 6, 10 A common item to convert the USP from a right-handed shooter to a left-handed operation. This is the control lever for the right side of the firearm for left-handed shooters. Compatible...$43.95 -
HK416, MR556, HK417, MR762 Pistol Grip Screw
H&K Heckler & Koch
$9.95H&K HK MR556/MR762/416/417 Pistol Grip Screw This is the screw used to retail all battle grips/pistol grips on the HK and standard AR15 and M16 firearms. Compatible With: HK MR556 HK416 HK MR762 HK417$9.95 -
HK VP9, VP9SK, VP40 Hex Button Quick Detach Slide Plate
HKP HK Parts
$34.95HKP HK VP9/VP9SK, VP40 Hex Button Quick Detach Slide Plate The HK Parts Quick Detach Slide Plate for the HK VP series of pistols is ideal for those that want the ability of quickly and efficiently access the firing pin, sleeve assembly. The quick...$34.95 -
HK VP9, VP40 Disassembly Lever
H&K Heckler & Koch
$24.95Disassembly Lever VP9 & VP40 New HK German VP9, VP40 take down lever. This is the lever that is designed to take the remove the slide from the frame. All steel manufacture. Compatible With: HK VP9 HK VP9A1 F HK VP9A1 K HK VP40$24.95 -
HK416, MR556 Ejector Retaining Pin
H&K Heckler & Koch
$6.95H&K HK MR556/416 Ejector Retaining Pin 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. Compatible With: HK MR556 HK 416$6.95 -
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 -
HK Mark 23, SOCOM Firing Pin Block
H&K Heckler & Koch
$35.95Heckler and Koch Firing Pin Block for Mark 23 and SOCOM This is the real deal and it is plated in nickel and made for the HK Mark 23 and SOCOM models. Compatible With: HK Mark 23 SOCOM Models$35.95 -
Out Of Stock
HK416, MR556, MR762 Fire Control Detent Stop Pin
H&K Heckler & Koch
$20.95H&K HK MR556/MR762/416 Fire Control Detent Stop Pin HK German manufacture. Compatible With: HK MR556 HK416 HK MR762$20.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin
H&K Heckler & Koch
$5.95H&K UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch Pin$5.95 -
HK Mark 23 Firing Pin Block Spring
H&K Heckler & Koch
$9.99HK Mark 23 Firing Pin Block Spring Compatible With: Mark 23 Socom .45$9.99