FAB Defense Ultimag Features The FAB Defense Ultimag magazine uses a low-friction follower engineered to keep rounds feeding smoothly into the chamber across a wide range of environments and conditions. An over-travel stop protects the firearm from damage during rapid magazine changes performed under stress a detail that matters in both training and competitive use. The cataphoresis-coated spring is built for long-term corrosion resistance and extended spring life even when the magazine is stored loaded for extended periods. Built from durable lightweight polymer composite with steel reinforcement the Ultimag balances low weight with genuine structural reliability. The ergonomic body shape is specifically designed to enhance grip during handling making magazine changes faster and more confident whether at the range or in a defensive scenario. A specialty-made floor plate supports coupling options giving the shooter flexibility to configure magazines together for quicker access. The magazine disassembles entirely by hand with no tools needed for cleaning or maintenance simplifying upkeep considerably. Compatible with 5.56x45 M16 M4 and AR15 variants this 5-round Ultimag is a practical choice for shooters who need a compact reliable magazine option. Fab Defense Ultimag Specifications Manufacturer: FAB Defense Model: Ultimag Caliber: 5.56 / .223 Rem Capacity: 5 Rounds Material: Polymer / Steel Compatible Hosts: AR-15 M16 M4 Weight: 0.23 lbs Available At: GrabAGun