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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HKP 22 Round HK VP9, HK P30 Complete Magazine - 9mm
HKP HK Parts
$79.95HKP 22 Round HK VP9, HK P30 9mm Complete Magazine Drop in magazine ready to go! HK Parts takes an existing 17 round magazine and a +5 magazine extension to assemble them into a working 22 round magazine. ***Magazines may have either Black or...HKP-19295$79.95 -
HK MP5, MP5K, SP89 MP5 Magazine - 9mm - 30 Round - Turkish
Other
$34.95Turkish Contract 30 Round MP5 Magazine - NEW These newly imported 30-round, 9mm, steel magazines were manufactured by a Turkish contractor for military use. These high-quality magazines are similar to MKE but are not MKE magazines. These 30 round MP5...HKP-22274$34.95 -
HK MP5 Fixed Stock
AC-Unity
$69.95AC-Unity HK MP5 Fixed Buttstock - Gen 2 with Removable Butt Pads The AC-Unity HK MP5 fixed buttstock delivers superior performance and comfort. Featuring soft, shock-absorbing rubber recoil pads, it effectively replaces the outdated fixed but-pad,...HKP-21640$69.95 -
HK MP5, MP5K Magazine - 30 Round - Bundesadler - 9mm
H&K Heckler & Koch
$83.00H&K 30 Round HK MP5 Bundesadler Magazine The bundesadler laser-etched into a factory German H&K magazine. Heckler & Koch German magazine 9mm 30 round curved all steel magazine. German HK MP5, MP5K mags are the finest HK ...HKP-20914$83.00 -
HK Pistol O-Ring - .40 S&W Green
H&K Heckler & Koch
$4.95O-ring for .40 caliber barrels Features: Original green color no longer in production Same high-temperature rubber as the newer black O-rings Factory part that provides the seal between the slide and the barrel Provides a secure lockup and increased...HKP-01985$4.95 -
HKP .45 ACP Vented Micro Comp - Threaded 16x1 LH
HKP HK Parts
$29.95HKP .45 ACP Vented Micro Comp - Threaded 16x1 LH The HK Parts micro comp & thread protector is designed to be lightweight, and functional as both a compensator and thread protector. The HK Parts micro comp easily attaches to the end of any...HKP-20211$29.95 -
HK91, G3 Full Length Handguard - M-LOK
AIM
$99.95HK 91 RIFLE LENGTH HANDGUARD- M-LOK This sleek streamlined design is an ultra low profile handguard with generous mounting space to accept all M-LOK accessories. Superior ergonomics and simple, drop-in installation makes this the best HK pattern rail on...HKP-18176$99.95 -
HK91, G3 Magazine - 20 Round - 7.62x51/.308
Thermold
$19.95Thermold HK91, G3 Magazine - 20 Round - 7.62x51/.308 - US Made This US-made magazine is made of space-age polymer. Also, it counts as three US-made compliance parts. Each magazine features a fail-safe follower non-corrosive (polymer magazine body)...HKP-02612$19.95 -
HK CC9 Complete Magazine - 15 Round - 9mm
HKP HK Parts
$79.95HKP HK Parts - HK CC9 Complete Magazine - 15 Round - 9mm This fully assembled 15-round magazine for the CC9 combines a factory German 12-round magazine with the HK Parts +3 magazine extension. Compatible With: HK CC9HKP-22038-M$79.95 -
HK VP9/P30 +3 Magazine Extension
HKP HK Parts
$34.95HKP +3 HK VP9/P30 Magazine Extension HK Parts magazine extension adds 3 additional rounds to the magazine with the simple swap of the floorplate for the extension. This is an easy 2 min swap, no gunsmithing needed. Made in the USA out of hard...HKP-17649-M$34.95 -
HK MP5, HK53 Locking Roller for Bolt Head - 9mm - 8.02mm
H&K Heckler & Koch
$39.95H&K +2 Roller For Bolt Head 8.02mm - Over-sized New HK standard (8.02 mm) locking roller. The proper roller size is essential for a proper bolt gap. New HK German, not surplus or used out-of-spec part. Please Note: The price listed is per roller...HKP-00507$39.95 -
HK USP, USP Tactical Magazine Spring - .45 ACP - 12 Round
H&K Heckler & Koch
$5.95HK Pistol Magazine Spring This is a must-have spare part for all HK pistol owners. HK recommends that for optimum performance, you change out the magazine springs often and swap them regularly when keeping the pistol magazines loaded for long periods...HKP-01426$5.95