Barrels
Premium HK Barrels and Firearm Parts to upgrade your HK firearm with precision-engineered, CHF (Cold Hammer Forged) barrels, and premium parts built for reliability, unparalleled accuracy, and long-term performance. Our OEM and aftermarket HK barrels deliver exceptional quality and fit for pistols, rifles, and submachine guns.
Key Features:
- CHF (Cold Hammer Forged) construction for unmatched durability and precision
- Engineered for superior accuracy and shot consistency
- Made from premium, corrosion-resistant materials
- Designed for performance, competition, and tactical applications
- OEM fit and easy installation across multiple HK platforms
Enhance your HK pistol or rifle with the best high-performance CHF barrels engineered for excellence, trusted by professionals and firearm enthusiasts.
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Out Of StockOn Sale
HK G36C Barrel Front End Kit - 5.56 / .223 - 8.9" - Threaded 15x1
HKP HK Parts
Now: $711.96Was: $889.95G36C Barrel Front End Barrel Kit - 223/556 New production HK G36C style barrel conversion kit and front end kit. Each kit will include the necessary parts to build a G38/SL8 variant into the G36KC barrel length variant as pictured. All you need is this...Now: $711.96Was: $889.95 -
Out Of StockOn Sale
HK USP Conversion Barrel - .40 S&W to 9mm - Threaded - 1/2x28
RCM
Now: $193.45Was: $214.95RCM HK USP .40 to 9mm Conversion Barrel - Threaded - 1/2x28 This 9mm conversion barrel is a drop-in replacement that allows your USP to shoot the popular 9mm cartridge. It has the standard 1/2x28 thread and comes with a thread protector. Each...Now: $193.45Was: $214.95 -
On Sale
HK Mark 23 Barrel - .45 ACP - 6.02" - Non-Threaded
RCM
Now: $225.00Was: $250.00RCM HK Mark 23 .45 ACP Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished inside and out with an ultra-desirable nitride coating. This is the finest replacement barrel available for the HK Mark...Now: $225.00Was: $250.00 -
On Sale
HK VP40 Thread Protector - 14.5x1 LH - Tactical Texas Style
USA
Now: $22.45Was: $24.95HKP .40 S&W Tactical Texas Style Thread Protector - Threaded 14.5x1 LH The Texas style thread protector features raised knurling, distinguishing it from the standard HK Style with flat knurling. Made in the USA, it is designed for use with 14.5x1 LH...Now: $22.45Was: $24.95 -
Out Of StockOn Sale
HK P2000 Barrel - .357 SIG
H&K Heckler & Koch
Now: $296.95Was: $329.95HK P2000 .357 Barrel This is a great spare or replacement barrel to have on hand. This is a popular barrel to convert the P2000 .40 to .357.Now: $296.95Was: $329.95 -
On Sale
HK416, MR556 Barrel - 5.56 - 10.4" - Threaded 1/2"x28 - A3
Nefarious Arms
Now: $535.46Was: $594.95Nefarious Arms HK 416/MR556 10.4" 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...Now: $535.46Was: $594.95 -
Out Of StockOn Sale
HK45 Thread Protector - .578x28 RH - Knurled
HKP HK Parts
Now: $11.96Was: $14.95HKP .45 ACP Thread Protector - Threaded .578x28 RH The new US-made .45 ACP tactical thread protector, the cap fits all HK45 full size & compact barrels threaded .578x28 RH thread. A must-have item to protect your threaded barrels, exposed threads...Now: $11.96Was: $14.95 -
On Sale
HK Mark 23 Thread Protector - 16x1 RH- US
HKP HK Parts
Now: $15.96Was: $19.95HKP HK Mark 23 .45 ACP Thread Protector - Threaded 16x1 RH Specifically designed for all H&K Mark 23/SOCOM barrels threaded 16x1 RH, this essential accessory offers superior protection for your threaded barrel. Featuring a durable nitride...Now: $15.96Was: $19.95 -
On Sale
HK P30L Conversion Barrel - .40 S&W To .357 SIG - Non-Threaded
RCM
Now: $213.75Was: $237.50RCM HK P30L .40 S&W To .357 SIG Conversion Barrel - Non-Threaded Each barrel is meticulously crafted from ordnance-grade steel, heat-treated, and finished with a durable nitride coating. This is the finest threaded barrel for the HK P30L .40...Now: $213.75Was: $237.50 -
HK USP 45 Barrel - .45 ACP - 4.41" - Full Size
H&K Heckler & Koch
$384.99HK USP .45 ACP Full Size Standard Length Barrel This part can be a replacement barrel for the USP Tactical if you do not want to have the threaded barrel installed. Easy drop-in installation. It can also be used to convert the USP Tactical .45 to a...$384.99 -
Out Of StockOn Sale
HK91, G3 Barrel - 7.62 / .308 - 18" - Threaded 5/8x24
PTR
Now: $193.45Was: $214.95PTR HK G3/91 (7.62x51/.308) GI Barrel - Threaded 5/8x24 New PTR91 US made G.I. spec 18" barrel. Perfect for any barrel threaded 5/8x24. New production perfect for new builds. This part counts as one US made compliant part. Specifications: Overall Lenght...Now: $193.45Was: $214.95 -
On Sale
Now: $71.95Was: $79.95