Lead & Steel Rifle-Length Match Grade Barrel 5.56x45mm 18", Black

The Lead & Steel barrels are machined from GM 4150 CMV blanks and undergo a stress relieving process to ensure durability and performance. These barrels are target crowned for improved accuracy and they feature a gas nitride finish, which enhances wear resistance, corrosion resistance and overall barrel longevity. 3/4 inches journal SPR profile for a balanced combination of accuracy, stability and weight management Rifle-length gas system for smoother cycling and reduced recoil in longer barreled rifles 1:8 inches twist rate 5.56x45mm chamber for compatibility with both 5.56x45mm and .223 Remington cartridges, offering reliable performance and versatility Dimpled for securing gas block set screws Sub-MOA accuracy guaranteed with MK262 ammunition 39 oz weighs