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
HK91, G3 Barrel - 7.62x51 - 17.7" - Threaded 5/8x24
RCM
Now: $224.95Was: $264.99RCM HK G3/91 Threaded Barrel - 5/8x24-CHE Machined by RCM from a Mil-Spec 41V50 Hammer Forged Blank. These blanks are considered to be one of the finest made. 1:10 twist, Nitride finish. Perfect for that HK build or to replace that shot out barrel. Each...HKP-21838Now: $224.95Was: $264.99 -
Out Of Stock
B&T Official PVC Patch White
B&T Brugger & Thomet
$5.00B&T Official PVC Patch White - 2.5"HKP-21735$5.00 -
On Sale
HK33, HK53, HK93 Dual Magazine Clamp
HKP HK Parts
Now: $39.96Was: $49.95HKP HK33, HK53, HK93 Dual Magazine Clamp Securely hold two HK33 magazines together for fast mag swaps. Precision-machined from billet aluminum and anodized in the popular red or classic black. Our dual mag clamp is a must for those quick mag changes...HKP-21608-MNow: $39.96Was: $49.95 -
On Sale
HK33 Cocking Tube - 11" - Right Hand
HKP HK Parts
Now: $74.95Was: $99.95HKP HK33 11" Right Hand Cocking Tube This is the one and only right handed cocking tube for the HK33 cocking tube made in the US. Made to the exact HK specifications as the factory HK33 German cocking tube. Overall length is 11".HKP-18692Now: $74.95Was: $99.95 -
HK MP5K Ace Style Stock
HKP HK Parts / Heckler & Koch
$164.95HKP HK MP5K Ace Style Stock MP5K billet ace adapter paired with an all-steel ace-style stock.HKP-20953$164.95 -
On Sale
HK MP5 QD End Cap with Buffer
HKP HK Parts
Now: $63.95Was: $99.95Quick Detach Steel End Cap With Replaceable Rubber Buffer - HK MP5 With this MP5 QD end cap upgrade you will get a heavier buffer to internally protect your firearm and keep your bolt carrier in tip top condition for years to come. Machined aircraft...HKP-20118Now: $63.95Was: $99.95 -
On Sale
Glock 17 Gen 5 Stand Off Device
HKP HK Parts
Now: $29.95Was: $109.95Stand Off Device - Glock 17 Gen 5 The HK Parts stand off is designed to keep the slide in battery to allow discharge when the firearm is pressed against or comes into contact with an object. It is an excellent self-defense addition. The standoff device...HKP-19263Now: $29.95Was: $109.95 -
HK45C LEM Conversion Kit - Complete
H&K Heckler & Koch
$199.95New HK German HK 45 Compact LEM Conversion Kit Complete For All HK 45 Compact Pistols Use factory installed trigger return spring for the light LEM (4.5-5.5lb) and the supplied heavy trigger return spring for the heavy LEM conversion. This LEM conversion...HKP-01037$199.95 -
HK P7 Series Button Spring - Slide Removal
H&K Heckler & Koch
$7.95HK P7 Series Slide Removal Button Spring This item is no longer in production. Get it while it's still available. Compatible With: PSP P7M8 P7M10 P7M13HKP-01314$7.95 -
On Sale
HK45, 45C, P30, 30L Holster - MTAC - RH
Comp-Tac
Now: $79.95Was: $94.95HK P30, P30L, HK45, HK45C MTAC Holster - Right Hand The MTAC is an inside the waistband Kydex and leather hybrid holster designed for concealed carry. Created to be worn behind the hip at 4:00 or 5:00, this holster offers the best in comfort and speed...HKP-17476Now: $79.95Was: $94.95 -
HK45, HK45 Compact, USP, USP Compact .45 ACP Trigger Bar
H&K Heckler & Koch
$44.95New HK German Factory Trigger Bar Compatible With: HK USP 45, USP .45 Tactical HK USP Compact .45 HK 45, HK45 Tactical HK45C, HK45C TacticalHKP-01255$44.95 -
Out Of Stock
HK USP Raised Tactical Front Sight
H&K Heckler & Koch
$29.95Heckler and Koch HK USP Raised Tactical Front Sight Compatible With: USP 9mm USP .40 USP .45 USP Tactical models USP Expert modelsHKP-01403$29.95