 It comes with a 406 mm (16 in), 457 mm (18 in) or 533 mm (21 in) barrel, an aluminum-alloy lower receiver, and improved Glass-filled Nylon furniture.Civilian models are semi-automatic, but military and Law Enforcement clients can procure select-fire models that have a fully automatic cyclic rate of 750 rounds/minute.The DSA-58 can use any metric-measurement FAL magazines, which come in 5, 10, 20 or 30-round capacities.