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 G36/SL8 (5.56/.223) Ejector Spring
USA
$19.95HK G36 & SL8 Series Of Ejector Spring. Great item to have on hand as this is prone to wear and breakage- US.HKP-18374$19.95 -
HK G36, SL8 Firing Pin - All Variants
H&K Heckler & Koch
$59.95HK German G36/SL8 Firing Pin This is a great spare to have on hand. The firing pin fits all G36, G36K, G36C & SL8 variants. Compatible With: HK G36/G36K/G36C HK SL8HKP-00289$59.95 -
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...HKP-16830$8.95 -
HK45, HK45 Compact Left Side Safety Lever
H&K Heckler & Koch
$29.95HK 45/45C Left Side Safety Lever This control lever is for those who are right-handed and want the control lever on the left-hand side of the frame. This is the V1 selector with a decocking function and safety...HKP-01770$29.95 -
$4.95 -
HK UMP, USC Stock Block B Sling Pin - Thumb Screw Style
HDPS
$74.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B Sling Pin-Thumb Screw Style The original thumb screw version for all stock block B's.HKP-15731$74.95 -
Out Of Stock
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,...HKP-22284$14.95 -
HK MP5 Recoil Spring - Enhanced
HKP HK Parts
$16.95HKP HK MP5 Enhanced Recoil Spring The HK Parts enhanced recoil spring offers a 5% increase in strength over the factory MP5 spring. Ideal for high round count firearms, suppressed setups, or simply to improve longevity. Won't fit F style recoil rods or...HKP-22209$16.95 -
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...HKP-18111-M$34.95 -
HK P Series LEM Hammer
H&K Heckler & Koch
$65.95H&K HK P Series LEM Hammer Factory HK German hammer. Compatible With: HK P30 P30L P30SK HK P2000 P2000SKHKP-15436$65.95 -
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 TacticalHKP-02250$7.95 -
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 HK417HKP-02679$9.95