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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B&T APC Magazine - 30 Round - 9mm - Translucent - KCI
KCI
$44.95Korean 30 Round B&T APC 9mm Magazine - KCI USA Features: Brand new factory fresh, individually sealed magazine 30 round capacity 9mm caliberHKP-20293$44.95 -
On Sale
HK P2000, USPC Magazine Extension - +5 - 9mm
HKP HK Parts
$31.84 - $49.95HKP +5 9mm Magazine Extension for HK P2000 and HK USPC HK Parts magazine extension +5 adds 5 additional rounds to the HK P2000, 13 round magazine. It uses the existing mag body, spring, and follower...HKP-18661-M$31.84 - $49.95 -
HK MP5, MP5K Magazine Locking Plate - 9mm
H&K Heckler & Koch
$16.95HK MP5 & MP5K Magazine Locking Plate - German New steel HK German manufactured MP5, MP5K curved magazine locking plate for the magazine. Compatible With:HKP-01490$16.95 -
On Sale
Sig Sauer P320C Compensator
HKP HK Parts
Now: $74.96Was: $189.95HKP SIG P320C Compensator Our P320 P320C compensator reduces recoil and muzzle flip. Each unit is 100% US-made and finished in durable black cerakote. Our P320C compensator features a Picatinny rail...HKP-21092Now: $74.96Was: $189.95 -
On Sale
HK VP9 Gen1 V1 Rail Mount Compensator
HKP HK Parts
Now: $101.21Was: $189.95HKP HK VP9 Gen1 V1 Rail Mount Compensator *DO NOT USE COMPENSATOR WITH A THREAD PROTECTOR INSTALLED ON THE BARREL. Doing so will result in damage to your firearm and compensator.*HKP-19566Now: $101.21Was: $189.95 -
HK Mark 23 Firing Pin Retaining Pin
H&K Heckler & Koch
$8.95HK Mark 23 Firing Pin Retaining Pin Replacement pin for the Mark 23 firing pin block. A must have part to have on hand.HKP-01601$8.95 -
Out Of Stock
HK USPC, P2000SK Magazine - 9mm - 13 Round - Flat Floorplate
H&K Heckler & Koch
$49.9513 Round HK USPC 9mm Magazine w/ Flat Floorplate Perfect for concealed carry or use as a lower profile magazine. Compatible With: HKHKP-02243$49.95 -
HK MP5, HK90 Series Hammer Strut
H&K Heckler & Koch
$9.95H&K G3,91,PTR, 93,33 & MP5, 94 Hammer Strut New HK German Hammer Strut for 90 series rifles and pistols. A perfect spare to have on hand. This is a non-pinned hammer spring shank. Perfect for your HK...HKP-15445$9.95 -
HK90 Series Cocking Tube End Cap
H&K Heckler & Koch
$39.95H&K Cocking Tube End Cap/Dust Cap This part is Factory HK, painted black and not surplus or old stock. Each is factory-fresh and manufactured in steel. Compatible With:HKP-00099$39.95 -
On Sale
B&T Ambidextrous Sling Pin- Large
B&T Brugger & Thomet
Now: $52.16Was: $57.95B&T Stock Ambidextrous Sling Pin That Replaces The Push Pin For Stock Each ambi sling pin will allow the use of a sling mounting location for either a left or right hand shooter for replacing the...HKP-16887Now: $52.16Was: $57.95 -
HK MP5K Dual Folding Stabilizer with Adapter
HKP HK Parts / Strike Industries
$319.95 - $339.95Strike Industries Dual Folding Stabilizer with HKP MP5K Adapter The Strike Industries Dual Folding Stabilizer paired with the HKP MP5K picatinny adapter is one of the best options on the market for...HKP-21386-M$319.95 - $339.95 -
HKP .40 S&W Micro Comp - Threaded 9/16x24
HKP HK Parts
$29.95HKP .40 S&W Micro Comp - Threaded 9/16x24 The HK Parts Micro Comp & Thread Protector is a lightweight, fully functional device that combines the benefits of a compensator and a thread protector...HKP-19956$29.95