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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HK416, MR556 Barrel - 5.56 - 11" - Threaded 1/2"x28 - A3
Nefarious Arms
$594.95Nefarious Arms HK 416/MR556 11" A3 Barrel ***THE BARREL EXTENSION RIM IS MARKED "HAUS" DUE TO AN ERROR BY THE BARREL EXTENSION SUPPLIER. THE MARKING IS NOT VISIBLE ONCE INSTALLED. THESE BARRELS ARE GENUINE NEFARIOUS BARRELS AS NEFARIOUS WILL...HKP-21619$594.95 -
B&T Unigrip QD with Bipod - Aluminum
B&T Brugger & Thomet
$224.99B&T Unigrip QD with Bipod - Aluminum This B&T foregrip features a retractable bipod for superior weapon stability in both the standing and prone positions. Specifications: Condition: Factory new Material: Aluminum Heat deflection...HKP-21596-M$224.99 -
MI Blast Can - 1/2x28 Thread (5.56/9mm)
MI Midwest Industries
$38.95MI Blast Can 1/2x28 Thread (5.56/9mm) Specifications: Directs muzzle blast forward on short barrel rifles and pistols. Does not reduce recoil or flash. Constructed from 6061 aluminum, and hardcoat anodized for a lifetime of service 1/2x28 threads for 5...HKP-21535$38.95 -
HKP (5.56/.223) A5 Flash Hider - Threaded 1/2x28
HKP HK Parts
$59.95HKP (5.56/.223) HK 416C A5 Flash Hider - Threaded 1/2x28 Made from ordnance grade steel, heat treated, and melonited (nitride process) for maximum longevity. Machined correctly to reduce tuning fork noise for a more pleasant time at the range. This is...HKP-21342$59.95 -
Out Of Stock
HK416C Upper Receiver Kit - 9"
HKP HK Parts
$2,799.95HK416C Complete Upper Kit - 9" Our complete 416C upper kit includes everything you need to pair with a mil-spec lower or an STS 416C lower. For that genuine look, the STS 416C lower with the correct 416C stock eyelets is as good as you can get...HKP-21042$2,799.95 -
Out Of StockOn Sale
B&T TP9, MP9 Holster - Camo - Swiss Military
B&T Brugger & Thomet
Now: $74.95Was: $125.00B&T TP9/MP9 Camo Holster - Swiss Military The B&T TP9 tactical leg holster is perfect for your TP9 or MP9 Pistol. This drop leg holster is fully adjustable both up and down and tightness around the leg. If you're looking for a tactical holster...HKP-20980Now: $74.95Was: $125.00 -
On Sale
Ruger 10/22 Bolt Shroud - Bronze
Tactical Precision MFG
Now: $27.95Was: $66.99Tactical Precision MFG Ruger 10/22 Bronze Bolt Shroud This Ruger American rifle bolt shroud is hands down the best RAR bolt shroud on the market. Each bolt shroud is made in house on a five-axis Swiss lathe to exacting tolerances out of grade 5...HKP-20905Now: $27.95Was: $66.99 -
On Sale
Tikka T3 Bolt Handle - Upgrade
Tactical Precision MFG
Now: $34.95Was: $69.99TPM Tikka T3 Bolt Handle Upgrade Designed for exact Tikka specs. Tikka T3 upgraded bolt handle is 17-4 stainless steel for optimal strength and durability. This upgraded bolt handle was designed with a 20-degree angle to help improve bolt manipulation...HKP-20901Now: $34.95Was: $69.99 -
HKP Hat - Snapback - Baseball - OSFM - Black and Gray
HKP HK Parts
$17.95HKP Baseball Trucker Snapback Cap - OSFM - Black & Gray Get your hands on some of our premium hats! Features: Official HKP merchandise Cotton twill Mesh back panels Plastic adjustable snap closure Size: OSFM Six-panelHKP-20713$17.95 -
B&T Unigrip - Quick Detach - Aluminum
B&T Brugger & Thomet
$150.00B&T Quick Detach Aluminum Unigrip - Black This simple fore grip is designed to be mounted on the NAR/Picatinny rail of the gun. The grip is hollow and can be used as a storage compartment after unscrewing the bottom lid. Thanks to the QD mount, the...HKP-19473$150.00 -
HK USC, UMP Cocking Handle Assembly - Complete
HKP HK Parts
$149.95HKP Cocking Handle Assembly for HK USC, UMP Complete cocking handle assembly for HK USC and HK UMP platforms. US-made and built to factory-spec dimensions and includes all required components for proper function and replacement. Includes: Steel cocking...HKP-19155$149.95 -
HK45C, P30 Holster - Paddle -RH
Comp-Tac
$84.95Comp-Tac HK P30, HK 45C RH Paddle Holster The Comp-Tac Paddle Holster is an all-Kydex outside the waistband holster that may be worn for competition, general use or concealed carry. The paddle is designed to be worn at 3:00 for the right handed shooter...HKP-18815$84.95