Parts
At HK Parts, we offer a wide range of high-quality Heckler and Koch accessories and components for your favorite firearms. Whether you are upgrading a Heckler and Koch pistol or rifle, or building with parts kits, we have you covered. Explore top-rated components for VP9, USP, P30, MP5, MP5K, G36, HK416, and more. From triggers, barrels, and grips to magazines, stocks, and sights, find the parts you need to enhance performance, reliability, and function.
Popular upgrades include match triggers, threaded barrels, compensators, optic plates, and extended magazines. Rifle owners often add enhanced stocks, forearms, and ambidextrous controls.
MP5 and MP5K kits are top sellers, giving shooters authentic components for iconic builds. G36 and HK416 kits are also highly sought after by collectors and professionals alike.
HKP offers the world’s largest H&K-focused catalog, with better availability, faster fulfillment, and expert support compared to general retailers.
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HK SL8, G36 Magazine Release Spring
H&K Heckler & Koch
$9.95Heckler and Koch Magazine Release Spring for HK G36 and HK SL8 A must have spare part. Compatible With: G36 SL8HKP-16344$9.95 -
HK G36 Backplate
H&K Heckler & Koch
$94.99HK G36 Backplate With Recoil Buffer This is a great spare or replacement to have on hand. These are also required for those that are doing the SL8-G36 conversions provided by Tommy Bostic & Chopstix Kid.HKP-01058$94.99 -
HK MP5 Rear Sight Set - Dented
H&K Heckler & Koch
$49.99Rear Sight with Hardware - Used Dented - MP5 German HK MP5 rear sight assembly with a dented 4 position drum. Condition will vary. Includes: HK rear sight Detent Spring windage screw Sight screw Washer Locking washer Compatible With: MP5 MAC-5 clones...HKP-19247$49.99 -
HK VP9, VP9SK, VP40 Trigger Safety Spring
H&K Heckler & Koch
$6.95H&K HK VP9/VP9SK, VP40 Trigger Safety Catch Elbow Spring Elbow spring for trigger safety catch VP9, VP9SK & VP40.HKP-16772$6.95 -
HK P30, P2000, USP Block Spring - Heavy Firing Pin
H&K Heckler & Koch
$5.95HK P2000 & P30 Heavy Firing Pin Block Spring This is the heavy LEM spring found on the LEM conversion. Compatible With: Any post-2005 production USP & UPSC P2000 P2000SK P30 P30SK Will fit the HK45 & HK45C modelsHKP-01603$5.95 -
HK USPC Night Sights - Tru-Dot - Green
Meprolight
$118.95Meprolight HK USP Compact - Tru-DotNight Sights - Green HK Factory OEM part: 701973 HK uses these as their OEM night sight. Features: Green Front & Green Rear Tritium Unequaled Light Performance Brightest Night Sights Available Today Used by...HKP-01908$118.95 -
HK P2000, USP Compact Firing Pin - New Style
H&K Heckler & Koch
$74.95HK P2000/USPC New Style Firing Pin Compatible With: HK USP Compact 9mm HK USP Compact 40 S&W HK USP Compact 357 SIG HK USP Compact LEM HK P2000 9mm HK P2000 40 S&W HK P2000 357 SIG HK P2000SK 9mm HK P2000SK 40 S&W HK P2000SK 357 SIGHKP-01563$74.95 -
HK416, MR556 FFRS Retaining Spring
H&K Heckler & Koch
$9.99H&K HK MR556/HK416 FFRS Retaining Spring The retainer spring retains the handguard locking pin on the Free Floating Rail System (FFRS). These can become damaged with the removal of the handguard screws. Once the spring is damaged, they have to be...HKP-02617$9.99 -
HK CC9 IWB Clip - Minimalist
HKP HK Parts
$59.95HKP HK CC9 IWB Clip - Minimalist The HKP HK CC9 IWB clip offers a minimalist solution for absolute concealment. When a holster creates undesired printing, our IWB eliminates the bulk to keep the pistol safe from discovery. Our IWB clip fits snug...HKP-22095$59.95 -
HK VP9, P30 Enhanced Magazine Extension Kit +5
HKP HK Parts
$64.95Magazine Extension Kit +5 - HK VP9, HK P30 Latest and greatest VP9/P30 Enhanced magazine extension. Our new design was made to give our current magazine extension a more aggressive look and a overall better functionality. With the added features all...HKP-21404-M$64.95 -
HK MP5 2-Stage Trigger Group - 9mm - Complete
Timney Triggers
$478.95Timney HK MP5 Trigger - 9mm - 2 Stage - Complete The SEF Timney trigger group comes completely assembled, ready to drop into your receiver. Features a 3rd generation German ejector lever, new SEF selector lever, and a brand new factory German housing...HK-20511-M$478.95 -
HK33, HK93, G3 Front Sight Tower Assembly
HKP HK Parts
$49.87HKP HK G3, HK 33, HK 93, PTR Front Sight Tower Assembly New US made from a solid billet of ordnance grade steel. Each front sight tower, triple frame set comes complete with a new HK diopter style replaceable front sight post & roll pin. This is the...HKP-17830$49.87