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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On Sale
HK UMP, USC Picatinny Rail Set - 4 Piece - Used
H&K Heckler & Koch
Now: $199.95Was: $269.95Heckler and Koch 4 Piece Picatinny Rail Set for HK UMP and USC - Used Used HK factory Picatinny rail set for the HK UMP and USC. This 4 piece set includes one extended top rail for optics and three smaller rails for side and bottom mounting...HKP-99471Now: $199.95Was: $269.95 -
On Sale
HK Single Point Leather Sling - Brown - BLEMISHED
HKP HK Parts
Now: $37.95Was: $49.95HK Single Point Leather Sling - Brown - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. Our leather sling utilizes two HK style sling hooks to attach to...HKP-20161-BNow: $37.95Was: $49.95 -
HK416, MR556 Handguard - HKey - Euro Spec
H&K Heckler & Koch
$576.95HK416, MR556 HKey Euro-Spec Slimline Handguard Euro-spec slimline handguard for HK416 and MR556 platforms. Compatible With: HK416, HK416 A1/A5 MR556, MR556 A1/A4 MR223 A3 In-spec clones and custom builds *NOT compatible with the US spec HKey accessoriesHKP-22837$576.95 -
HK VP9CC Elbow Spring For Trigger
H&K Heckler & Koch
$5.95HK VP9CC Elbow Spring For Trigger Elbow spring for the HK VP9CC pistol platform. Compatible With: VP9CCHKP-22746$5.95 -
HK VP9CC Grooved Pin For Ejector
H&K Heckler & Koch
$5.95HK VP9CC Grooved Pin For Ejector Factory HK grooved pin for the ejector assembly in HK VP9CC pistol. Compatible With: VP9CCHKP-22754$5.95 -
HK VP9CC Sleeve, Rear
H&K Heckler & Koch
$9.95HK VP9CC Sleeve Factory HK sleeve for the HK VP9CC pistol. Compatible With: VP9CCHKP-22763$9.95 -
HK VP9CC Pressure Spring For Slide Release
H&K Heckler & Koch
$5.95HK VP9CC Spring for Slide Release Spring for the slide release for HK VP9CC pistol. Compatible With: VP9CCHKP-22747$5.95 -
HK VP9CC Clamping Sleeve, Front
H&K Heckler & Koch
$5.95HK VP9CC Front Clamping Sleeve Clamping sleeve for HK VP9CC platform. Compatible With: VP9CCHKP-22762$5.95 -
On Sale
AR-15 C.A.R.L. 2-Round Limiter Lever for FRTs
ST Inc
Now: $122.95Was: $145.00ST Inc. 2-Round C.A.R.L. Lever for AR-15 Rifles Equipped with AS Designs ARC-Fire and Atrius Trigger Systems The C.A.R.L. (Cam Activated Reset Limiter) is a drop-in FRT-piggy-back system that extends trigger release after every second round fired...HKP-22561Now: $122.95Was: $145.00 -
On Sale
HK21, HK11 Barrel with Grip Handle and Flash Hider - 17.7" - MM
Michaels Machines
Now: $1,182.95Was: $1,478.95MM HK21 Barrel - 17.7" - CHF Michael's Machines HK21 barrels are crafted in the US from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance. Each barrel ships complete with a factory new flash hider and fully assembled handle comprised...HKP-22534Now: $1,182.95Was: $1,478.95 -
HK91, G3 Bolt Head - Complete - Used
H&K Heckler & Koch
$179.95Heckler and Koch Complete Bolt Head for HK91 and G3 - Used Complete used bolt head for HK91 and G3 pattern rifles. Ideal as a replacement part for worn or damaged assemblies, or as a spare for future maintenance. This is a used part. Condition will...HKP-22527$179.95 -
Out Of StockOn Sale
Hensoldt Wetzlar PZF44 Scope - German - Like New
Hensoldt
Now: $144.95Was: $199.95German Bundeswehr Pzf 44 – 2.5× Panzerfaust scope. Optical scope for a West German anti-tank rocket launcher. Includes carrying case, cleaning brush, cloth, and adapters. Compatible With: PZF 44HKP-99417Now: $144.95Was: $199.95