 An optional magazine adaptor enables the use of M16 type STANAG magazines.Some who have used the Galil ARM with the 50-round magazine have noted that it is difficult to engage targets at elevated heights while firing on the ground in the prone position due to the magazine's extended length.The L-shaped rear sight has two apertures preset for firing at 0–300 m and 300–500 m respectively (the rear sight can only be adjusted for elevation).