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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Hammer Spring, HK Burst Trigger Packs
H&K Heckler & Koch
$19.95H&K Hammer Spring For HK Burst Trigger Pack The HK German factory intermediate poundage "satin" gray hammer spring is found in all 9mm, 40/10, and .556/223 burst trigger packs and is proven to be the most reliable and longest-lasting spring for burst...HKP-01111$19.95 -
HK MR556, MR762 A4 Safety Lever - Left
H&K Heckler & Koch
$12.95H&K MR556/MR762 A4 Safety Lever - Left Left-side selector lever for MR-series ambidextrous safety systems. Compatible With: HK MR762 A1/A4 HK MR556 A1/A4HKP-21965$12.95 -
On Sale
HK VP9 Magwell - EDC - Steel
HKP HK Parts
Now: $63.95Was: $79.95HKP HK VP9 Steel EDC Tactical Magwell Our newest and greatest EDC magwell was redesigned for a much faster and reliable mag reloads. With a much greater funneled area it guides you to the correct position every time resulting in no-look magazine...HKP-21410Now: $63.95Was: $79.95 -
On Sale
HK91, G3, HK33, HK53 HK93 Tac Latch
Now: $58.95Was: $69.95HK Rifle Tac Latch for HK91, G3, HK93, and HK33 HK's were designed to have a quick one-handed release capability for the magazine (paddle mag release). However, the semi-auto versions eliminated this much-needed feature due to import restrictions...HKP-02791Now: $58.95Was: $69.95 -
On Sale
HK SEF Short Axle Selector Lever For Metal Trigger Housings Only
HKP HK Parts
Now: $15.95Was: $19.95HKP SEF Short Axle Selector Lever For Metal Trigger Housings Only HK German steel SEF selector lever. Please note that the polymer (plastic) style SEF housing uses the longer axle SEF selector lever not this product offering. Brand new factory...HKP-17910Now: $15.95Was: $19.95 -
On Sale
HK USP, Mark 23 Magazine Extension Kit - .45 - +7
HKP HK Parts
Now: $47.95Was: $59.95HKP HK USP .45/MK23 - Magazine Extension Kit +7 HKP highly recommends using a magazine loader when loading ammunition into our extended magazines due to increased spring tension versus factory. Includes: +7 magazine extension Extra power enhanced...HKP-21513-MNow: $47.95Was: $59.95 -
On Sale
Sig Sauer Compensator - P365-XMACRO
HKP HK Parts
Now: $99.95Was: $179.95HKP SIG P365-XMACRO Compensator Our SIG P365-XMACRO compensator reduces recoil and muzzle flip. Each unit is 100% US made and finished in durable black cerakote. Our XMACRO compensator features a picatinny rail to mount lights/lasers. Available...HKP-21259Now: $99.95Was: $179.95 -
HK MP5, HK94 Slimline Handguard
H&K Heckler & Koch
$69.95H&K HK MP5 & HK 94 Slimline Forearm Used German military slimline forearm refinished and cerakote in a black finish. Modified to fit the MP5 & SP5. These are rare items only offered here at HK Parts. Each item is in good to...HKP-20274-M$69.95 -
On Sale
HK VP9, P30 Magazine - 22 Round - 9mm
Strike Industries
Now: $62.95Was: $69.95Strike Industries 22 Round HK VP9 9mm Magazine Strike Industries +5 magazine extension coupled with a 17 round factory German magazine body adds 5 additional rounds total for a fully assembled 22 round HK VP9. Each mag comes fully assembled and...HKP-19608Now: $62.95Was: $69.95 -
HK91, G3 A2 Fixed Buttstock - Jungle Green - Used Excellent
H&K Heckler & Koch
$36.95HK Heckler and Koch Fixed Stock in Jungle Green - Used Excellent for HK91, G3 7.62x51/.308 Handpicked best condition available. Comes with matching buttpad. Ready to install on your HK or clone rifle. Used in perfect working condition. Each buttstock...HKP-18497$36.95 -
On Sale
HK MP5K, SP89, SP5K Barrel - 5.85" - Threaded 1/2x28 with 3 Lug
B&T Brugger & Thomet
Now: $296.95Was: $350.00B&T HK MP5K/SP5K/SP89 Barrel - Threaded 1/2x28 - 3-Lug New from B&T Switzerland, cold hammer-forged (CHF), properly fluted & nitrided MP5K/SP5K barrels manufactured exclusively for the HK SP5K. New Swiss manufactured from hand-picked Swiss...HKP-17894Now: $296.95Was: $350.00 -
On Sale
HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH
HKP HK Parts
Now: $23.95Was: $29.95HKP .45 ACP Vertical Slot Micro Comp - Threaded .578x28 RH The HK Parts micro comp & thread protector strikes a balance between a lightweight, minimalistic design and range functionality. The micro comp easily threads on to the end of any factory...HKP-21635Now: $23.95Was: $29.95