FN America’s 5.56x45mm AR-15 Barrel is a high-quality upgrade to any AR build. The 16” barrel features M16 styling with mil-spec steel construction and a black manganese phosphate finish. The carbine length barrel has a chrome lined chamber and M4 style feed ramps compatible with 5.56x45mm and .223 Remington that help extend barrel life while providing consistent, reliable feeding while shooting. It is threaded in 1/2×28 and has a 1:7 RH twist rate.

• 16” barrel chambered in 5.56 / .223
• Machined from mil-spec steel
• Chrome lined chamber
• M4 style feed ramps
• Carbine length gas system
• Threaded 1/2×28
• Black Manganese Phosphate finish