The Guntec USA BAR-5.5-TIN barrel is engineered for precision and durability, perfect for both seasoned marksmen and avid shooters. Constructed from high-quality 4150 chromoly steel, this barrel delivers reliable performance under varying shooting conditions, making it an ideal choice for tactical and recreational use. 5.5 inch length with lightweight contour for heat dissipation 1:5 twist rate for optimal bullet stabilization Durable 1/2 by 28 threading compatible with various muzzle devices Stylish gold titanium nitride coating for corrosion resistance Custom short gas tube tailored for improved cycling and reduced recoil Enhance your firearm's performance and reliability with the cutting-edge Guntec USA BAR-5.5-TIN barrel.