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 (.45 ACP) Carbine Mag Release Axle
H&K Heckler & Koch
$18.95HK German USC Magazine Release Axle This is a great replacement as they are prone to breakage and wear. These are also a missing part in some states where bullet buttons are required. This part is compatible with all HK USC...$18.95 -
HK USC Locking Lever Axle - .45 ACP
H&K Heckler & Koch
$29.95HK USC Lower Locking Lever Axle A great item to have on hand as spares. New German HK. Compatible With: All USC lowers$29.95 -
HK UMP/USC (.40 S&W/.45 ACP/9mm) Bolt Catch
H&K Heckler & Koch
$36.95HK UMP & USC Bolt Catch New HK German lower. Compatible With: HK UMP HK USC$36.95 -
HK MP5 40, 10 Roller - -4
H&K Heckler & Koch
$19.95HK German MP5 40/10 -4 roller Hard to find and essential for making headspace adjustments when necessary. Great spare to have on hand and no longer in production. Please Note: The price listed is per roller. Order 2 (pair) for a complete set for...$19.95 -
HK417, MR762 Takedown Pin - Front - A4 Style
H&K Heckler & Koch
$40.95H&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 HK417$40.95 -
HK VP9SK Grip Wrap for Small Backstraps - Granulate
Talon Grip
$19.99TALON Grip - H&K VP9SK - Granulate Black - Small Backstrap TALON grips are textured, stick-on gun grips that help you get a secure hold on your firearm improving performance, safety, and confidence so you maintain control. Installation is quick and...$19.99 -
HK45, HK45 Compact Extractor
H&K Heckler & Koch
$49.95German HK45 & HK45C Extractor - New A great spare and replacement part to have. Compatible With: HK45 Tactical HK45 HK45 Compact Tactical HK45 Compact$49.95 -
$6.95 -
HK417, MR556, MR762 Index Pin Spring
H&K Heckler & Koch
$7.95H&K HK MR556/MR762/417 Index Pin Spring Compatible With: HK MR556 HK 417 HK MR762$7.95 -
Out Of Stock
HK UMP, USC Stock Block B - Push Pin
HDPS
$39.95HDPS HK UMP/USC (.40 S&W/.45 ACP/9mm) Stock Block B - Push Pin This sling pin will replace the current production stock Block B hardware and upgrade to the Sling Pin Pull Style version.$39.95 -
HK MP5 Extractor - 10mm / .40 S&W
RCM
$34.95MP5 40 & 10mm Extractor - US Made This part is made to the exact same specs as the HK German extractor final polish included. It is also a great upgrade for the clone CA and Vector builds.$34.95 -
Out Of Stock
HK MP5 Magazine Locking Plate - 30 Round
KCI
$3.49KCI HK MP5 Locking Plate Spare locking plate for KCI MP5 30 round magazines. Compatible With: HK MP5$3.49