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.
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
-
HK45 +5 E2 Magazine Extension Kit
HKP HK Parts
$64.95HKP HK45 +5 E2 Magazine Extension Kit Our HK45 E2 design boldly transforms our magazine extension, giving it an aggressive look along with superior functionality. The enhanced features throughout the extension provide not only the striking appearance we...HKP-21627-M$64.95 -
On Sale
HK UMP Magazine - .40 S&W - 30 Round - USED
HKP HK Parts
Now: $36.95Was: $49.95HKP HK UMP (.40 S&W) 30 Round Magazine - USED Each 30-round magazine will fit all HK UMP .40 caliber carbines, SMGs as well as the USC-UMP .40 caliber conversions. Each magazine features steel feed lips, enhanced polymer construction and all correct...HKP-17583-USEDNow: $36.95Was: $49.95 -
On Sale
HK USC Stock Block to Picatinny Rail
HKP HK Parts
Now: $119.96Was: $149.95HKP HK USC Stock Block to Picatinny Rail The HKP USC stock block with picatinny rail offers superior adjustability for the stock of your choice. Each stock block is crafted from billet aluminum, cerakoted for a robust finish, and includes the sling pin...HKP-21594-MNow: $119.96Was: $149.95 -
Blast Can - Threaded 1/2x28 - 9mm, 5.56 / .223
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...HKP-21535$38.95 -
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 -
On Sale
HK USC , UMP Top Rail
Other
Now: $99.95Was: $149.95Top Rail - HK USC / UMP TommyBuilt anodized aluminum high rise top rail. Includes mounting hardware. Compatible With: HK UMP HK USC TMP UMP cloneHKP-20744Now: $99.95Was: $149.95 -
HK MP5, MP5K Flash Hider - 3-Lug - Titanium - 9mm
HKP HK Parts
$139.95HKP MP5 9mm Titanium Flash Hider - 3-Lug Easily attaches to the end of any factory specification 9mm 3 lugged barrel. This flash hider does not require the of threads as it attached to the 3 lug tip. Also a great addition for any of 3 lug barrels found...HKP-20223$139.95 -
On Sale
HK VP40 Holster - Appendix IWB
Odin Holsters
Now: $37.46Was: $79.95Odin Hoslters HK VP40 Appendix IWB Holster This is an inside the waistband holster. Each holster is made by hand and is made for use with the HK VP40. Custom molded using a vacuum former for perfect fit and adjustable retention. Great for long days at...HKP-19656-MNow: $37.46Was: $79.95 -
HK416, MR556 Charging Handle Roll Pin
$7.95HK 416, MR556 Roll Pin for Charging Handle - HKP This is the shorter one that is used on the inside of the charging handle. There are two of these pins used per charging handle.HKP-16536$7.95 -
HK VP9, P30, HK45 Sight Set - Day and Night - Self Illuminated - Green
Meprolight
$119.95Meprolight HK45/HK45C, P30, VP9 Hyper-Bright Self Illuminated Day/Night Sight Set - Green Mepro Hyper-Bright fixed pistol sights feature an extremely bright contrasting colored ring front sight. The tritium is illuminated green to provide low-light and...HKP-19940$119.95 -
HK45 Thread Protector - Threaded .578x28 RH
USA
$24.95HK45 .45 ACP Thread Protector - Threaded .578x28 RH Made in the USA, HK45 .45 ACP thread protector, for full size & compact barrels with a 578x28 RH. Made from stainless steel with a nitride finished. Specifications: Made in the USA Stainless...HKP-19891$24.95