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 Fixed Buttstock Buttpad - Alpine Green
H&K Heckler & Koch
$79.95H&K Fixed Stock Buttpad - Alpine Green Perfect for A2 G3, 91, PTR91 & HK33, 53, 93 fixed stocks. This is a factory German brand new in HK wrapping German part.HKP-17027$79.95 -
On Sale
HK33, HK53, HK93 Trigger Group - 4 Position 0,1,3,F - Complete
H&K Heckler & Koch
Now: $2,989.95Was: $3,399.95Heckler and Koch HK33, HK53, HK93 4 Position Burst Trigger Group Complete (0,1,3,F) Factory German HK 4-position burst trigger group configured for push-pin style receivers. This complete assembly is designed for HK93, HK33, and HK53 platforms and...HKP-00018Now: $2,989.95Was: $3,399.95 -
HK53 Cocking Tube - Left Hand
HKP HK Parts
$99.95HK53 Length Cocking Tube - For Left Handed Shooters New HK53, HK51 cocking tube made in the US. Made to the exact HK specifications as the factory HK53 German cocking tube. This is the only factory correct HK53 cocking tube available as HK Germany does...HKP-19028$99.95 -
HK MP5 Bolt Carrier - Full Auto - .40 S&W, 10mm - USA
HKP HK Parts
$149.95HKP MP5.40 S&W, 10mm Full Auto Bolt Carrier Machined completely from billet ordnance steel and black oxide finished. This carrier is made to the latest specs, tungsten filled, and heat treated. Made in the USA and available exclusively at HK...HKP-18363$149.95 -
Out Of Stock
HK MP5K, SP89 Trigger Group - 9mm - 2 Position - Housing 0,1
HKP HK Parts
$0.00HKP/H&K MP5K/SP89 9mm Safe & Semi Only Trigger Group - Clipped & Pinned Introducing a cost-effective alternative to the rare and expensive all-German HK FBI or 0,1 ambidextrous trigger group, now available in a 2-position Navy factory German...HKP-17241$0.00 -
HK MP5K Bolt Group - Complete - Full Auto - 9mm
H&K Heckler & Koch
$2,974.95MP5K Full Auto Bolt Group "F" Style Complete - German Each factory HK MP5K bolt group includes the following: MP5K F/A - F style bolt carrier F style bolt head 100 degree locking piece firing pin firing pin spring recoil rod assembly Extremely rare...HKP-00384$2,974.95 -
Out Of Stock
HK Ambidextrous Sling - Green
H&K Heckler & Koch
$149.95HK Ambidextrous Sling - Green This sling is the factory HK Green 1.25" Ambi Sling with dual HK sling hooks for use on either the left or right side of the weapon. Best used with the ambi sling pins as the option shown below. Can be used on nearly...HKP-00183$149.95 -
HK416, MR556 C.A.R.L. - 2, 3, or 6 Round Interchangeable Cam Limiter
AS Designs
$55.00ST Inc Limiter Cam for HK416, MR556 ARC-Fire CARL Lever - 2, 3, and 6 Round Options Limiter cam for the ST Inc CARL lever used with the HK416 and MR556 ARC-Fire trigger setup. Available in 2, 3, and 6 round configurations, each cam changes the CARL reset...HKP-22565-M$55.00 -
HK MP5K 3 Position Navy Ambi Housing Clipped & Pinned
H&K Heckler & Koch
$449.95HK German Ambidextrous, Pictogram Marked MP5K 3 Position Navy Housing Clipped & Pinned. New HK German. This HK German Navy housing Features ambidextrous functionality and pictogram markings. This housing is clipped & pinned for secure attachment...HKP-01033$449.95 -
On Sale
HK91, G3 Cocking Tube with Hanger - Ribbed - USED
H&K Heckler & Koch
Now: $27.95Was: $34.95HK German HK G3, HK91 Ribbed Cocking Tube With Hanger Installed - Used VARYING CONDITION SHOWN - SOLD INDIVIDUALLY DENTED. REFER TO PICTURES USED PARTS ARE SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL USED PART SALES ARE FINAL. Used...HKP-00719-USEDNow: $27.95Was: $34.95 -
HK UMP, USC Front Sight - Omega
OMEGA
$9.95Omega UMP And USC Front Sight Front sight for HK UMP and HK USC Compatible With: UMP USCHKP-22513$9.95 -
Muzzle Brake - 5.56 and .308 - Threaded 5/8x24 RH
HKP HK Parts
$29.95HKP muzzle brake threaded 5/8x24 RH for 5.56/.223 and 7.62x51/.308 firearms This HKP muzzle brake is manufactured in the USA to HK specifications and is designed for use on 5.56 and .308 rifles. It features a partially milled birdcage-style design...HKP-22508$29.95