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
HK21, HK11 Barrel - 7.62 / .308 - 17.7"
RCM
Now: $616.46Was: $684.95RCM HK21 Barrel RCM HK21 barrels are crafted from 41V50 CHF blanks and fully nitrided for optimal corrosion resistance durable finish. These barrels are the most cost-effective option to finish your HK21/FMP or HK11 build as the original barrels are rare...Now: $616.46Was: $684.95 -
On Sale
HK Mark 23 Thread Protector - 16mm x 1 - RH
H&K Heckler & Koch
Now: $36.89Was: $40.99New factory HK Mark 23 SOCOM thread protector This is the only thread protector that HK offers that will fit the HK Mark 23 Pistol. This is a hard-to-find item and a must-have for all MK23 Owners. Compatible With: All H&K Mark 23/ SOCOM barrels...Now: $36.89Was: $40.99 -
On Sale
HK SP5, SP5K Thread Protector - 9mm - 1/2x28
HKP HK Parts
Now: $15.96Was: $19.95HKP HK SP5, SP5K 9mm Thread Protector - Threaded 1/2x28 Our thread protector is compatible with all factory-spec SP5 barrels and is a perfect replacement part. Specifications: Made in the USA Threaded 1/2x28 Compatible With: HK SP5, SP5K 9mm SP5, SP5K...Now: $15.96Was: $19.95 -
Out Of StockOn Sale
HK MP5, HK90 Series Barrel Pin Jig
HKP HK Parts
Now: $95.96Was: $119.95HKP HK MP5, HK90 Series Barrel Pin Jig This jig is designed for the installation and removal of barrel pins on all HK 90 series rifles and pistols. It’s the companion tool for builders already using HK flat-bending jigs and other HKP armorer tools,...Now: $95.96Was: $119.95 -
On Sale
HK USP Tactical Barrel - .45 ACP - 5.09" - Threaded .578x28 RH
RCM
Now: $225.00Was: $250.00RCM HK USP .45 ACP Tactical Barrel - Threaded .578x28 RH HK USP .45 & USP .45 Tactical threaded barrel compatible with various flash hiders and sound suppressors. Unlike the factory USP .45 Tactical barrel, which uses a less common metric 16x1 left...Now: $225.00Was: $250.00 -
On Sale
HK MP5SD Cleaning Tool - Barrel Brush
HiTec Arms
Now: $107.95Was: $119.95HiTec Arms barrel tool for cleaning your HK MP5SD Barrel cleaning brush tool for integrally suppressed ported barrels. This is a good tool to have on hand for any MP5SD owner to clean carbon build up and avoid your suppressor seizing on your barrel. Made...Now: $107.95Was: $119.95 -
On Sale
HK VP9 Barrel - 9mm - Threaded 1/2x28
SilencerCo
Now: $170.95Was: $189.95SilencerCo HK VP9 9mm Barrel - Threaded 1/2x28 High-quality components and precise manufacturing make SilencerCo parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years...Now: $170.95Was: $189.95 -
On Sale
HK 9mm Thread Protector - 1/2x28
HKP HK Parts
Now: $11.96Was: $14.95HKP (9mm) Thread Protector For Barrels - Threaded 1/2x28 A must-have accessory to safeguard the threads on your threaded barrel, this thread protector is the finest available. It is the standard thread protector included with all HKPARTS threaded pistol...Now: $11.96Was: $14.95 -
On Sale
HK MP5, SP5 Barrel Assembly - Refinished
H&K Heckler & Koch
Now: $187.95Was: $399.95H&K HK MP5/SP5 Barrel Assembly - Refinished / Like New German H&K like new refurbished cold hammer forged barrel for MP5/SP5/HK94. Features a tri-lug for suppressor attachment. The most ideal barrel for future builds or re-barreling your current...Now: $187.95Was: $399.95 -
On Sale
HK MP5SD Port Brush - Barrel - Replacement Cartridge
HKP HK Parts
Now: $31.00Was: $38.75HKP MP5SD Replacement Cartridge for Barrel Port Brush Replacement cartridge for HK MP5SD barrel port brush. Our replacement cartridge is compatible with factory HK barrel brush assemblies. Compatible With: HK MP5SDNow: $31.00Was: $38.75 -
On Sale
HK VP9, USP Thread Protector - 13.5x1 LH - Enhanced
HKP HK Parts
Now: $19.96Was: $24.95HKP 9mm Enhanced Thread Protector - Threaded 13.5x1 LH Titanium manufactured enhanced thread protector in 13.5x1 LH for use with all threaded barrels. This unique design will fit over and protect the crown of your barrel for added protection...Now: $19.96Was: $24.95 -
On Sale
HK 9mm Thread Protector - Enhanced - 1/2x28 RH
HKP HK Parts
Now: $15.96Was: $19.95HKP HK 9mm Enhanced Thread Protector - Threaded 1/2x28 RH This enhanced thread protector is crafted from stainless steel and designed for 1/2x28 threaded barrels. Its unique design not only fits over and protects the crown of your barrel but...Now: $15.96Was: $19.95