The Andro Corp Industried ACI15 is a modern sporting rifle built with the high quality components and are made to perform multiple uses under a wide variety of conditions. High quality components like a 7075 Forged lower, 4150 CMV melonite Barrel, QPQ Corrosion resistant finish, and 7075 T6 MilSpec Dry Film Lubed Upper make these rifles durable and dependable for the long haul. With the provided 15" MLOK handguard, the ACI15 rifles are easy to accessorize with a near limitless number of accessories. - CALIBER 223 REM/5.56MM NATO - MAGAZINE (1) 30rd capacity - BARREL 16" 4150 CMV melonite 1/7 Twist, - RECEIVERS 7075 Forged Aluminum - HANDGUARD 15" MLOK - STOCK M4