FAB Defense FX-UMAG30 Ultimag 30R AR-15/M4 5.56x45 NATO 30-Rd Polymer Magazine

The FAB Defense FX-UMAG30 Ultimag 30R is a 30-round polymer magazine engineered for AR-15/M4-pattern rifles chambered in 5.56x45mm NATO. Built around a lightweight polymer body, the Ultimag 30R features integrated translucent witness windows along the housing for fast, at-a-glance visual confirmation of the remaining round count.

Designed for dependable AR-platform feeding, the FX-UMAG30 is dimensionally compatible with AR-15, M4, and M16 magazine wells and runs both 5.56x45 NATO and .223 Remington. Whether carried as a spare or loaded for the range, the Ultimag 30R delivers reliable fit and function.