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 MR556 Barrel - 5.56 / .223 - 16" - Complete Upper
H&K Heckler & Koch
$989.95HK MR556 16" Complete Upper Barrel Factory HK MR556 16" barrel, complete with a factory-installed barrel nut, gas block and flash hider. Every component is brand new and meticulously crafted,...HKP-21805$989.95 -
On Sale
HK G3 Brass Catcher
B&T Brugger & Thomet
Now: $223.46Was: $385.00B&T HK G3 Brass Catcher THIS CLOSEOUT PART IS NOT ELIGIBLE FOR RETURN, REFUND, OR EXCHANGE. SALE IS FINAL. Mounts to B&T tri-rail handguard (BT-21042) which is no longer available from B&T.HKP-21703Now: $223.46Was: $385.00 -
Out Of Stock
Aimpoint Micro T1, T2 20.4mm Spacer
B&T Brugger & Thomet
$91.00Aimpoint Micro T1, T2 20.4mm Spacer 20.4mm riser for Aimpoint T1 and T2 optics. Simply remove your T1 or T2 from the current mount and insert this spacer to raise your optic 20.4mm. Great for...HKP-21682$91.00 -
On Sale
HK416 Handguard - 9" - Strike Industries GRIDLOK - Full Duty
Strike Industries
Now: $203.33Was: $318.95Strike Industries HK 416 - 9" Handguard - Gridlok Full Duty The Strike Industries GRIDLOK® Rail for 416 gives you a primary, a secondary or multiple setup options as a quick and direct handguard swap...HKP-21312Now: $203.33Was: $318.95 -
On Sale
HK MP5K Barrel - 10mm - Threaded 14x.75 with 3 Lug
RCM
Now: $188.46Was: $279.95RCM HK MP5K 10mm Barrel - Threaded 14x.75 Upgrade your MP5K with the RCM HK MP5K 10mm Barrel, featuring a precise 14x1.75 threading for optimal accessory compatibility. Expertly crafted to enhance...HKP-21155Now: $188.46Was: $279.95 -
Out Of Stock
HK11 LMG 7.62×51mm NATO Parts Kit
H&K Heckler & Koch
$0.00H&K HK11 LMG 7.62×51mm NATO Parts Kit HK 11 Parts Kit 7.62x51mm demilled to BATFE specs with 2 spare G3 aluminum magazines. The HK11 was built during the 70’s and 80’s. These are interchangeable with...HKP-20912$0.00 -
On Sale
Remington 700 - 30 MOA - Scope Base Long Action
Tactical Precision MFG
Now: $26.96Was: $76.99TPM Remington 700 Scope Base Long Action 30 MOA These tight tolerance, bomb proof scope rail allow the shooter to make best use of the scope's elevation adjustment for those long-range shots and...HKP-20760Now: $26.96Was: $76.99 -
HK MP5SD Parts Kit
H&K Heckler & Koch
$8,799.95H&K HK MP5SD German Parts Kit Genuine German H&K MP5SD parts kit in good condition. Ultra rare offering with all highly desirable parts including a like-new Navy 3 position trigger group with ESSL,...HKP-20641$8,799.95 -
HK MP5K-PDW German Parts Kit
H&K Heckler & Koch
$7,199.95Heckler and Koch HK MP5K-PDW German Parts Kit Finally after searching all over the country we are able to bring you the rare and ultra-desirable MP5K-PDW parts kit. In good to like new condition with...HKP-20640$7,199.95 -
Out Of Stock
HK SL8 Barrel - 5.56 / .223 - 20.8" - Used - Complete Assembly
H&K Heckler & Koch
$449.95Factory HK SL8 Barrel, 20.8" used, like new HK German Sl8 barrel with barrel nut, gas block installed. HK SL8-1 HK SL8-6 Rare and hard to find.HKP-20316$449.95 -
HK MP5K PDW Barrel - 10mm - Threaded 9/16x24 with 3 Lug
USA
$299.95USA MP5K-PDW 10mm Barrel - Threaded 9/16x24 - 3-Lug This US-made MP5KN-PDW 10mm barrel is a rare barrel. Ideal for enhancing your MP5K-PDW, this barrel combines precision threading with the...HKP-02317$299.95 -
$89.99