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.
Note: It is recommended that all FN America parts be installed by a qualified and trained gunsmith.
- 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