The Samson Evolution Series is the next step forward in free-floating hand guards. Light weight and durable, these handguards offer the perfect upgrade for 3 gun shooters, LE/Military or weekend enthusiasts. The 1.8" faceted O.D. offers a comfortable shooting platform while not being too large for most shooters. Accessory rails can be added or removed easily to adapt the handguard to your needs (units can also be mounted at 45 degree offsets).