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 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 G36HKP-16341$29.95 -
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...HKP-01649$17.95 -
On Sale
HK21E, HK11E Firing Pin - Titanium
HKP HK Parts
Now: $31.84Was: $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...HKP-17771Now: $31.84Was: $49.95 -
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:HKP-00114$139.99 -
B&T TP9, MP9 Firing Pin
B&T Brugger & Thomet
$44.95B&T Firing Pin For B&T TP9, MP9 Genuine Swiss Brugger and Thomet firing pin for the TP9 and MP9 platforms. Compatible With: B&T TP9HKP-17297$44.95 -
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 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 -
HK USP Hammer, Hammer Strut Roll Pin
H&K Heckler & Koch
$5.95HK USP Hammer, Hammer Strut Roll Pin This pin installs in the hammer and makes contact with the hammer strut.HKP-02268$5.95 -
HK UMP, USC Bolt Catch Spring
H&K Heckler & Koch
$8.95HK UMP & USC Bolt Catch Spring Compatible With: HK UMP HK USCHKP-01900$8.95 -
Out Of Stock
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...HKP-16913$4.95 -
HK MP5 Recoil Rod Bushing - .40 S&W, 10mm, .357 SIG
H&K Heckler & Koch
$9.95New HK German MP5 40/10/.357 Recoil Rod Guide Ring Bushing For all MP5 40/10 & MP5F Recoil Rods. These will wear and become brittle and torn with age and use. A great item to have on hand for spare...HKP-00441$9.95 -
HK VP9, VP9SK, VP40 Catch Cylindrical Pin
H&K Heckler & Koch
$9.95Cylindrical Pin For Catch VP9, VP40 Compatible With: HK VP9 HK VP9SK HK VP9A1 F, VP9A1 K HK VP4HKP-16802$9.95