The 14.5 SOCOM profile barrel assembly is a versatile option for your next build. It features a 1-7 twist rate optimized for stabilizing a wide range of bullet weights. The assembly comes with an F marked front sight base and a 2-piece handguard making it easy to install and use. The barrel is made of high-quality 4150 steel chrome lined ensuring durability and longevity. The SOCOM profile gives this assembly a sleek and classic look making it suitable for both recreational and professional use. Starts with our 14.5 M4 SOCOM profile Chrome Lined barrel with F Marked Front Sight Base 5.56 mm made from 4150 CMV steel with a 1-7 twist mated to our A3 Flattop receiver which includes our chrome lined bolt carrier 7075 charging handle forward assist and ejection port cover.