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 USC, SL8 Buttstock Allen Screw
H&K Heckler & Koch
$17.95Buttstock Allen Screw For HK USC Or HK SL8 rifles. This is the screw that holds the stock assembly onto the upper receiver of the HK USC & SL8.Great for replacements or to have as spares. This item is factory HK and a common spare.HKP-01649$17.95 -
HK German Ambidextrous Sling Pin Replacement O-Ring
H&K Heckler & Koch
$5.95H&K German Ambidextrous Sling Pin Replacement O-Ring HK ambidextrous sling pin replacement O-ring for all ambidextrous sling pins. Brand new factory German manufacture. This item is a common wear/breakage part that does need to be replaced from time...HKP-19985$5.95 -
Out Of Stock
HK UMP, USC Lower Bolt Catch
HKP HK Parts
$22.95HK UMP & USC Bolt Catch For Last Round Hold Open New HK USA lower bolt catch. Compatible With: HK UMP HK USCHKP-19565$22.95 -
HK VP9, VP9SK, VP40 Trigger Bar Pin
HKP HK Parts
$9.95HKP HK Parts Elbow Spring Stop Pin for HK VP9, HK VP9SK, and HK VP40HKP-16779$9.95 -
HK Mark 23 Magazine Release
H&K Heckler & Koch
$24.99Heckler and Koch Magazine Release HK Mark 23 Compatible with: Mark 23HKP-01772$24.99 -
Out Of Stock
HK USP .45 ACP Extractor
H&K Heckler & Koch
$49.95HK German Extractor for USP 45 & USP Tactical .45 Full Size Pistol Compatible With: USP 45 USP 45 Tactical USP 45 Expert, EliteHKP-01275$49.95 -
HK G36, SL8 Barrel Retaining Nut
H&K Heckler & Koch
$29.95HK G36 & SL8 Barrel Retaining Nut - German HK Compatible With: SL8 (all models and variants) G36E G36K G36C All other G36 VariantsHKP-16341$29.95 -
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
$49.95HK21E, MM21E, 11E Firing Pin - Titanium Grade 6 weapons grade Titanium manufacture. Made in the USA. A must have upgrade to have on hand as the firing pin is one of the most abused components in the HK weapon system. Get the lightest,...HKP-17771$49.95 -
HK Bolt Locking Lever Pin - Cylindrical Pin
H&K Heckler & Koch
$4.95Heckler and Koch Bolt Locking Lever Pin/Cylindrical Pin New HK91, G3, PTR-91 .308 & HK 93, 33, 53 Bolt Carrier Bolt Locking Lever pin (cylindrical pin). This item holds the locking lever & spring in place on the actual bolt head.HKP-16913$4.95 -
HK VP9 Short Slide Release Lever - Left
H&K Heckler & Koch
$54.95H&K VP Short Slide Release Lever - Left Short Left side slide release for VP series pistols. Can be combined with 260498, 50254710, 50239708. Compatible With: VP9/VP9 Tactical VP9 Match VP9L VP9SK VP9K VP9 A1 VP40HKP-22000$54.95 -
HK417, MR762 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$43.99H&K MR762 A4 Receiver Front Takedown Pin German-made factory pivot pin for the MR762 A4. Will work with A1 models as well. Compatible With: HK MR762 A1 and A4 HK417HKP-21958$43.99 -
HK G36, SL8 Paddle Magazine Release
H&K Heckler & Koch
$19.95Heckler and Koch Paddle Magazine Release for HK G36 and HK SL8 Compatible With: SL8 G36 G36K G36CHKP-02152$19.95