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 VP9, P30 Magazine, Complete - 30 Round
HKP HK Parts
$72.95HKP HK Parts 30 Round Complete 9mm Magazine for HK VP9 and HK P30 New HK German VP9 and P30 Magazine body combo; pre-installed along with the HK Parts 30 round mag extension kit fully installed. Each offering is a complete, fully assembled, ready for...HKP-17172$72.95 -
HK MP5, MP5K, HK33, HK53, HK93, HK91, G3 Cocking Tube Hanger Clip
H&K Heckler & Koch
$13.95Heckler and Koch Cocking Tube Hanger Clip The HK cocking tube support hanger is the part that welds onto the end of the cocking tube that allows the forearm to install with the use of a small push pin. New HK German factory manufactured. Ready to weld...HKP-00349$13.95 -
Out Of Stock
HK VP Series F3 Trigger - Full Flat Face - 9mm, .40 S&W
Lazy Wolf
$129.95Lazy Wolf's F3 Full Flat Face Trigger for the extensive HK VP Series - Black In a collaboration with Lazy Wolf Guns, HK Parts is offering aftermarket triggers for your HK VP9 and VP40 handguns. The drop in VP9 series trigger is the best trigger ever...HKP-17988$129.95 -
HK USP, USPC .45 Match Hammer Spring
H&K Heckler & Koch
$5.95HK USP, USPC, & HK45 Match Hammer Spring The match hammer spring is also known as the USPC standard hammer spring. This is also the correct spring needed for the light, TGS, and LEM conversion for the USPC & other custom pistol configurations...HKP-01410$5.95 -
HK91, G3 Cocking Handle Axle Pin
H&K Heckler & Koch
$9.95New HK German G3, 91, 21, & PTR Cocking Handle Axle Pin This is a new HK factory part for the .308 HK rifle. This part is the axle pin that holds the cocking handle in place on the cocking tube support. Will also work perfectly for all HK93, HK53,...HKP-01690$9.95 -
HK GSG-5 Push Pin Upgrade Kit - .22LR
H&K Heckler & Koch
$29.95H&K GSG-5 Push Pin Upgrade Kit This item is a set of genuine HK German factory push pins that will upgrade all your GSG-5 rifles or pistols to quick take-down push pins. This is one of the most common and desirable upgrades available for your GSG5...HKP-01064$29.95 -
HK91, G3 Improved Buffer System - Bill Springfield
Bill Springfield
$79.95HK Improved Buffer System - HK91 Bill Springfield developed a new piston and spring assembly that reduces the felt recoil up to 30% on any HK or clone utilizing the standard assembly. This piston is 2x longer than stock, the spring is about 25% lighter...HKP-19914$79.95 -
Out Of Stock
HK MP5, HK90 Series Forearm Sling Pin - Quick Detach Attachment
HKP HK Parts
$37.95HKP Quick Detach Sling Attachment Sling Pin - Small The small push pin is used to retain the forearm to the receiver on the HK90 series of firearms. The QD sling pin is a great replacement item as it will allow the user to simply swap the push pin for...HKP-18071$37.95 -
HK MP5K Handguard - 9mm - M-LOK
UTG PRO
$189.95 - $198.95UTG PRO HK MP5K Handguard - 9mm - M-Lok with Picatinny Receiver Extension The new UTG PRO MP5K MLOK handguard with picatinny receiver extension is incredible. This thing is stunning! The machining, finish and fit are flawless. The assembly is...HKP-21151-M$189.95 - $198.95 -
HK MP5, SP5, MP5K, SP5K Magazine - 10 Round - 9mm - California Compliant
H&K Heckler & Koch
$88.95California Complaint Magazine 10-30 - MP5, MP5K - German - New This California compliant magazine has a 10 round block pre-installed which converts a factory 30 round magazine into a 10 round magazine. This is the best option to stay legal in...HKP-20670$88.95 -
Out Of Stock
HK USP Magazine - Full Size - .40 S&W - 13 Round
H&K Heckler & Koch
$49.00HK German USP 40 Full-Size Magazine Compatible With: USP .40 Full Size USP .40 Tactical USP .40 Elite/Expert Please Note: The Magazine does not fit USP Compact or P2000 modelsHKP-00309-M$49.00 -
HK91, G3, PTR Magazine - 20 Round - Steel - Surplus
H&K Heckler & Koch
$19.95H&K 91/G3/MSG90 (7.62x51/.308) 20 Round Magazine - Steel - Surplus: HK German 20 Round Steel Magazine Used - Surplus Condition Used German manufacture all steel magazine. They range from Fair to VG shape. Each magazine is a bargain for what you get...HKP-17696$19.95