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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Out Of StockOn Sale
HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special
USA
Now: $19.95Was: $59.95HK MP5 Length Project SF Trigger Housing - USED SURPLUS - Gunsmith Special MP5 length trigger housing perfect for projects or custom builds, each marked with the SE pictogram. The condition will vary from part-to-part vs. the pictured unit. Please Note:...HKP-99103Now: $19.95Was: $59.95 -
On Sale
HK MP5 Trunnion - Gunsmith Special
USA
Now: $24.95Was: $54.95HK MP5 Trunnion - Gunsmith Special US made HK MP5 trunnions sold as-is. Will require work before being functional. We recommend the work be performed by a professional gunsmith. The condition will vary from part-to-part vs. the pictured unit. Compatible...HKP-99089Now: $24.95Was: $54.95 -
HK P30L MOD 1 Compensator - Threaded Barrel
HKP HK Parts
$179.95HKP HK P30L MOD 1 Compensator - Threaded Barrel The HK Parts MOD 1 compensator strikes a seamless balance of form and function. Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker. Each MOD 1 comp...HKP-21871$179.95 -
HK Mouse Pad/Mini-Mat - Bundesadler
HKP HK Parts
$12.99HKP Mouse Pad - Bundesadler - Non-Slip Features stitched edges and a non-slip rubber base. Great as a mouse pad or a mini gun mat. Specifications: 9.84" Long x 8.27" WideHKP-21846$12.99 -
HK23E, HK13 Barrel - 5.56 / .223 - 17.7"
RCM
$699.95RCM HK23E Barrel RCM HK23E light profile barrels are made from mil-spec 41V50 CHF blanks that are fully salt bath nitrided for optimal wear and corrosion resistance. These barrels are the finest out there to complete your HK23E or HK13 build. These are...HKP-21837$699.95 -
On Sale
HK416, MR556 Extractor - BLEMISHED
HKP HK Parts
Now: $24.95Was: $39.95HKP HK MR556/416 Extractor - BLEMISHED COSMETICALLY BLEMISHED PARTS ARE FULLY FUNCTIONAL AND SOLD AS IS. THIS PART IS NOT ELIGIBLE FOR RETURN. ALL BLEMISHED PART SALES ARE FINAL. The HKP HK MR556/416 extractor is a precision-engineered component designed...HKP-21826-BNow: $24.95Was: $39.95 -
B&T GHM Telescopic Stock Arm
B&T Brugger & Thomet
$40.00B&T GHM Telescopic Stock Arm Factory replacement telescoping stock arm for the GHM platform. Fits left or right side of stock. Compatible With: B&T GHMHKP-21754$40.00 -
On Sale
HK VP9SK Holster - Compensator - LH
Odin Holsters
Now: $29.95Was: $79.95Odin Holsters HK VP9SK Comp Weight™ Compensator LH Holster - Black The VP9SK Comp Weight™ Compensator holster is an outside the waistband that allows the HK Parts Comp Weight™ to be installed as well. For a left-hand shooter with or...HKP-21630Now: $29.95Was: $79.95 -
Out Of Stock
HK416, MR556 Barrel - 5.56 - 14.5" - Threaded 1/2"x28 - A5
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 14.5" A5 Barrel Each Nefarious Arms barrel is cold-hammer-forged and chrome-lined for years of accurate shooting. Grab this expertly crafted barrel for your next SBR or pistol build. Compatible With: HK 416 (A5,...HKP-21590$594.95 -
B&T Angled Foregrip - Picatinny
B&T Brugger & Thomet
$71.99B&T Angled Foregrip - Coyote Tan - Picatinny Mount For those shooters who prefer an angled foregrip, this grip is the perfect solution. The lugs at the end of the grip assure a firm rest for the supporting hand. The grip can be mounted easily onto...HKP-21392$71.99 -
HK MP5K Trigger Housing - AR Match
Magpul
$349.95Magpul HK MP5K AR Trigger Housing This match-grade trigger housing is expertly crafted to elevate the performance of your HK MP5K. Our enhanced HK-AR Navy ambidextrous lower housing and Magpul MOE grip not only provide a modern aesthetic but also feature...HKP-21379-M$349.95 -
PTR Flat Tip Front Sight - Gen 2 - Orange
Blitzkrieg Components
$84.95Blitzkrieg PTR Flat Tip Front Sight Gen 2 - Orange The Blitzkrieg Gen 2 HK-style front sight delivers a fast and precise aiming point with its conventional flat-tipped post and bright orange stripe. Designed for easy installation, it utilizes a roll pin...HKP-21103$84.95