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 UMP, USC Picatinny Rail Set - 4 Piece
HKP HK Parts
$149.95HK UMP, USC Rail Set Complete A complete set of rails for your HK UMP/USC featuring an extended top rail for mounting your optic of choice. The rails are scratch resistant, class 3 mil-spec hard coat anodized. Each set includes the top rail, all 3 side...HKP-17429$149.95 -
HK MP5, MP5K Magazine Release Set
H&K Heckler & Koch
$184.95Heckler and Koch Magazine Release Set for HK MP5 and HK MP5K This is the complete magazine release kit that includes both the paddle mag release and standard left-to-right mag release on your HK 9mm rifle or pistol build. Set...HKP-02402$184.95 -
HK91, G3, PTR 91 Spare Parts Kit
HKP HK Parts / Heckler & Koch
$149.95HKP HK G3, HK 91, PTR 91 Spare Parts Kit Spare parts kits for the most commonly worn parts needed to keep your HK G3 going. This offering also includes a pouch to safely store all your replacement parts and needed tools to have on hand when required...HKP-20684$149.95 -
HK MP5, HK90 Series Re-Timed Hammer - SEF, Navy
Michaels Machines
$168.95MM Registered Sear Pack - Re-Timed Hammer - USA This part is the necessary addition for all registered sear conversions in 9mm, 40/10, 223, and.308 trigger packs. Protect your valuable investment by using the proper re-timed hammer for your sear pack...HKP-00153$168.95 -
Out Of Stock
HK416, MR556, MR762 Snap Hook Adapter for Slimline Buttstocks - Ambi
H&K Heckler & Koch
$177.95H&K MR556/MR762 Ambi Slimline Buttstock Snap Hook Adapter Genuine H&K snap hook adapter designed to provide ambidextrous sling attachment points for MR556 and MR762 slimline buttstocks. Compatible With: HK416, MR556, MR223 slimline...HKP-22100$177.95 -
HK P30, P2000 SA/DA Spartan Hammer - V1
Lazy Wolf
$148.95Lazy Wolf HK P30 & P2000 SA/DA Spartan Hammer - V1 Transform the feel and look of your HK P30 or P2000 Single Action/Dual Action pistol with the Lazy Wolf Guns Skeletonized Spartan Hammer. Redesigned geometry yields a superiorly smooth and...HKP-22186-M$148.95 -
HK MP5, SP5 A1 Sling Swivel End Cap
H&K Heckler & Koch
$139.99HK German MP5 & SP5 A1 End Cap With Sling Swivel The MP5 end cap allows the user to add a single-point sling. Perfect for a pistol build or a lower profile setup. Made by HK Germany. Compatible With: HK MP5 HK SP5 HK94 MP5 clones and other...HKP-00114$139.99 -
Out Of Stock
HK417, MR762, G28 Magazine Release - Ambidextrous
KDG Kinetic Development Group
$169.95KDG Kinetic Development Group Ambi Magazine Release for HK417, HK MR762, and HK G28 The HK 7.62 Ambi (Ambidextrous) Magazine Release. This is the first ambidextrous magazine release for the HK417 variant rifles. The mag release is a lever instead...HKP-19204$169.95 -
HK VP9SK Locking Block Guide
H&K Heckler & Koch
$180.95H&K HK VP9SK Locking Block Guide Locking block guide complete, welded for frame on all HK VP9SK, VP40SK models. Compatible With: HK VP9SK HK VP40SK Does NOT fit the full size VP modelsHKP-18309$180.95 -
HK MR762 Hammer Complete
H&K Heckler & Koch
$179.95H&K HK MR762 Hammer Complete HK MR762 hammer, hammer spring, & bushing as a complete hammer assembly. Compatible With: HK MR762HKP-16614$179.95 -
HK P7K3 Firing Pin .22LR
H&K Heckler & Koch
$145.95H&K HK P7K3 Firing Pin .22LR Genuine German firing pin for the P7K3 pistol. Ensures reliable ignition by striking the cartridge primer during firing. Compatible With: HK P7/P9 .22LRHKP-22232$145.95