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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HK416A5, MR556 Barrel - 5.56 / .223 - 11"
H&K Heckler & Koch
$424.95Heckler and Koch 11" Barrel for HK416A5, MR556 A4, MR556 A5 Factory German 11" HK416A5, MR556 barrel. Cold hammer-forged and built to HK’s standard for durability, accuracy, and service life. The 1:7 twist rate stabilizes a wide range of 5.56 NATO...$424.95 -
Out Of Stock
HK416 A5, MR556 A4 Barrel - 5.56 / .223 - 16.5"
H&K Heckler & Koch
$389.95H&K HK MR556 A4/A5 16.5" Barrel This 16.5" factory H&K MR556 A4 barrel is cold hammer-forged from high-quality steel for exceptional durability, accuracy, and longevity. Manufactured to Heckler & Koch’s exacting standards, it features a...$389.95 -
Out Of Stock
HK MR556 A4 Gas Block - Complete
H&K Heckler & Koch
$237.95H&K HK MR556 A4 Gas Block - Complete Factory HK MR556 A4 adjustable gas block ideal for switching between suppressed and unsuppressed firing. Compatible With: HK MR556 A4 Nefarious Arms A5 barrels Features: Genuine H&K factory...$237.95 -
HK MP5, HK94, HK34 Barrel - 9mm - 16.175" - Threaded 1/2x28
RCM
$249.95RCM MP5, HK34, HK94 Barrel - 9mm - 16.175"- Threaded 1/2x28 Each barrel is meticulously crafted from premium cold hammer forged (CHF) 41V45 steel, expertly profiled and chambered with a 16-flute chamber profile. Finished with a highly durable nitrided...$249.95 -
HK MR762 A4 Gas Vent Screw - 1.1mm
H&K Heckler & Koch
$32.95H&K MR762 A4 1.1mm Gas Vent Screw German 1.1mm gas vent screw for MR762 A4. Provides less venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4$32.95 -
HK MR762 A4 Gas Vent Screw - 1.2mm
H&K Heckler & Koch
$32.95H&K MR762 A4 1.2mm Gas Vent Screw German 1.2mm gas vent screw for MR762 A4. Provides less venting than the factory-installed 1.3mm screw. Compatible With: MR762 A4$32.95 -
HK P30, P30S Barrel - 9mm - 3.85" - Non-Threaded
RCM
$206.25RCM HK P30 & P30S 9mm 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 replacement barrel for the HK P30 9mm pistol, ideal as...$206.25 -
HK Mark 23 Thread Protector - Tactical Texas Style - Threaded 16x1 - RH
H&K Heckler & Koch
$24.95H&K Mark 23 ACP Tactical Texas Style Thread Protector - Threaded 16x1 RH The Texas Style thread protector features raised knurling, distinguishing it from the standard HK style, which does not have this raised texture. This design ensures a secure...$24.95 -
HK USP Expert Barrel - .45 ACP
H&K Heckler & Koch
$399.95HK USP .45 ACP Expert Barrel This barrel will fit all HK USP .45, full-size models. If you want a longer barrel for your HK USP 45 or USP 45 Tactical, this is a great option for an extended length or use with an HK Comp Weight.$399.95 -
HK Mark 23 Tactical Barrel - .45 ACP - 5.87" - Threaded 16x1 RH
RCM
$269.95RCM HK Mark 23 .45 ACP Tactical Barrel - Threaded 16x1 RH US made HK Mark 23 tactical threaded barrel for use with a wide variety of flash hiders & sound suppressors. Specifications: Made In The USA Double Stress Relieved Nitrided Finish To...$269.95 -
Out Of Stock
HK417, MR762, G28 Gas Block
H&K Heckler & Koch
$199.95H&K MR762/417/G28 Gas Block New German HK manufacture for the HK MR762 & HK417, G28 firearm. This unit comes without the sling loops installed. Compatible With: HK MR762 HK 417 HK G28$199.95 -
HK MP5, MP5K Thread Protector - 1/2x32 - RH
HKP HK Parts
$14.95HKP HK MP5/K Thread Protector - Threaded 1/2x32 RH This MP5/K thread protector is designed to safeguard your barrel threads from damage when a muzzle device is not in use. Made in the USA from high-quality steel, it offers durability and a precise fit...$14.95