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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HK417, MR762A4 Bolt Catch, Release - Ambi
H&K Heckler & Koch
$53.95Heckler and Koch MR762 A4 Bolt Catch/Release - Ambi Factory ambidextrous bolt catch lever for the MR762 A4. The A4 variant of the MR762 introduced ambi controls for the bolt catch/release not previously available on the A1 variant...HKP-21960$53.95 -
HK416, MR556 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$26.95H&K HK416, MR556 A4 Front Takedown Pin The HK416 front takedown pin is a German-made component designed to securely fasten the upper and lower receivers. Precision-machined for a proper fit, it ensures reliable function and serves as an ideal...HKP-21862$26.95 -
Out Of Stock
HK416, MR556 Firing Pin - Silver
GSG9
$34.95Firing Pin for HK 416 & MR556 Firearm - USA - GSG9 US made HK 416 & MR556 Made from hardened stainless steel. Compatible With: HK416 HK MR556 HK CR556 HK M27HKP-20650$34.95 -
HK VP9SK, VP40SK Backstrap - Small - Gray
H&K Heckler & Koch
$29.95H&K VP9SK, VP40SK Backstrap - Small - Gray New HK German manufacture. Compatible With: HK VP9SK HK VP40SKHKP-18969$29.95 -
HK45, HK45C Detent Plate for Variant 1, 2
H&K Heckler & Koch
$14.50Detent Plate For HK45, HK45C Variant 1, 2 Compatible With: HK45 HK45 CompactHKP-01807$14.50 -
HK Mark 23 Recoil Assembly Compression Spring
H&K Heckler & Koch
$19.95Mark 23 Recoil Assembly Compression Spring Brand new HK German recoil spring for the HK Mark 23 or SOCOM .45 Pistol. A high wear item that needs to be changed & replaced often as this is a consumable part.HKP-16644$19.95 -
HK P30 Recoil Rod Compression Spring
H&K Heckler & Koch
$7.95H&K HK P30 Recoil Rod Compression SpringHKP-16653$7.95 -
HK USP, USP Tactical Lanyard Loop Insert - .45 ACP
H&K Heckler & Koch
$18.95HK USP/Tactical .45 ACP Lanyard Loop Insert This item does not have the lockout device installed for those who prefer not to have this device on their firearm.HKP-02385$18.95 -
Out Of Stock
HK USP Hammer Spring
H&K Heckler & Koch
$7.95H&K HK USP Hammer Rebound Spring For use on DAO only NOT LEM hammers for the following pistols. Compatible With: HK USP 9mm HK USP .40 S&W HK USP .45 ACP HK USP Compact 9mm HK USP Compact .40 S&W HK USP Compact .357 SIG HK USP Compact .45...HKP-16678$7.95 -
HK G36, SL8 Cocking Handle Spring
H&K Heckler & Koch
$10.95HK German G36 Cocking Handle Spring - All Variants Compatible With: G36 - all variants SL8 - all variantsHKP-01862$10.95 -
$5.95 -
HK G36, SL8 Barrel Retaining Nut - 5.56 / .223
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