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 USP 9mm 18 Round Jet Funnel Magazine
H&K Heckler & Koch
$94.95H&K USP 9mm 18 Round Jet Funnel Magazine New style all black steel reinforced Jet Funnel 18 round USP 9mm magazine. This item can be used with or without the jet funnel magwell installed. Compatible With: USP/Tactical USP Expert/USP...HKP-14549-M$94.95 -
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 -
UZI Recoil Spring
IMI
$14.95Uzi Recoil Spring Assembly Uzi factory IMI bolt carrier spring assembly complete. In perfect working order. Pulled from exc condition demilled Uzi firearms.HKP-19918$14.95 -
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 USP, VP9 Barrel O-Ring - 9mm
H&K Heckler & Koch
$4.95HK German 9mm Barrel O-ring The O-ring is a high-wear and replacement item. To save money - order 10 or more and get an additional $1 off per O-ring. Compatible with: HK 9mm barrels with O-ring groove HK USP, USP Compact, USP Tactical 9mm HK USP Elite...HKP-00908$4.95 -
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 -
HK VP9, P30 Magazine Floorplate - 9mm / .40 S&W - 10 Round
H&K Heckler & Koch
$8.95HK VP9, VP9SK, VP40, P30, P30L & P30SK Rubberized Floor Plate HK German rubberized factory floor plate. Compatible With: VP9 VP40 P30, P30L, P30S P30SK 10 round mags VP9SK 10 round mags Please Note: This will not work or fit on 10-round VP9,...HKP-01616$8.95 -
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 -
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 -
HK P30SK, P2000SK Magazine Sleeve
X-Grip
$15.95VP9SK, P30SK & P2000SK - USPC/P2000 Mag Adapter X-Grip The XGRIP HK, VP9SK, P30SK & P2000SK are patent pending OEM factory accessories for the HK, V P30SK, and P2000SK that enhance the versatility, look, and feel of the gun. The XGRIP...HKP-00910$15.95 -
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 -
Out Of Stock
HK91, G3 Rear Push Pin Reinforcement Weldment
PTR
$19.95HK91, G3, PTR, CETME Push Pin Reinforcement Weldment HK91/G3/PTR91 or CETME steel receiver flat weldment that is added to the rear of the receiver where the 2 large stock push pins install to reinforce this section of the receiver against damage or use...HKP-18224$19.95