840 m/s (2,756 ft/s) FAL 50.61: 840 m/s (2,755.9 ft/s) FAL 50.63: 810 m/s (2,657.5 ft/s) FAL 50.41: 840 m/s (2,755.9 ft/s) Effective range 200–600 m sight adjustments Feed system 20 or 30-round detachable box magazine . 50 round drum also available. Sights Aperture rear sight, post front sight; sight radius: FAL 50.00, FAL 50.41: 553 mm (21.8 in) FAL 50.61, FAL 50.63: