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 Detent Plate for Variant 1, 2
H&K Heckler & Koch
$14.50Detent Plate For HK45, HK45C Variant 1, 2 Compatible With: HK45 HK45 Compact$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.$19.95 -
HK P30 Recoil Rod Compression Spring
H&K Heckler & Koch
$7.95H&K HK P30 Recoil Rod Compression Spring$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.$18.95 -
HK USP Retainer Roll Pin, Buffer Spring - .45 ACP
H&K Heckler & Koch
$7.95HK USP .45 ACP Buffer Spring Retainer Roll Pin$7.95 -
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...$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 variants$10.95 -
$5.95 -
HK33, HK53, HK93, HK91, G3 Internal Buffer With Break Springs
H&K Heckler & Koch
$17.95HK German G3, 91, PTR & HK 33, 93 Internal Buffer Brake Spring New HK German Brake Springs for the standard buffer found on the HK G3, 91, PTR & HK93, 33, 53 rear stocks. Compatible With: All standard A2 fixed stock buffers$17.95 -
HK91, G3 Extractor - Enhanced Coated Polish
HKP HK Parts
$24.95HKP HK 91/G3 Extractor - Enhanced Coated Polish Built for dependable performance, this polished and coated extractor delivers smooth cycling and consistent extraction. A great choice for both upgrades and routine replacements. Compatible With: HK...$24.95 -
HK416, MR556 Charging Handle Roll Pin
$7.95HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.$7.95 -
HK MP5, HK94, SP5 Magazine Spring - 10 Round
H&K Heckler & Koch
$6.9510 Round Magazine Spring - HK MP5, 94, SP5 A must-have repair and replacement part great for spares. Compatible With: All factory spec steel 10 round MP5, 94 style curved magazines$6.95