These incredible .223/5.56 magazines from Zastava are rugged and built to withstand anything you throw at them! These magazines are designed to fit the ZPAP85 and other similar firearms. The military grade polymer frame on this magazine contains a steel-reinforced rear locking lug for additional rigidity. The magazine has a BHO (bolt hold open) and follower that are also steel reinforced. These magazines are rigorously tested at high and low-temperature ranges to ensure reliability in the field, and they exhibit consistent strength, resistance to shattering, and lubricity from -40˚ C/F to +60˚ C/140˚ F.