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Fab Defense ULTIMAG Window Magazine FDE M16/M4/AR15 5.56mm NATO Rifle Magazine - 30 Rounds - The Ultimag 30R is a 30-round 5.56mm NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons, with transparent windows for rapid visual identification of remaining rounds

The Ultimag 30R provides a strong, durable, and reliable magazine solution using high grade materials.

Multi-textured surface for enhanced grip when handling and reloading
Unique floor plate for versatile coupling options
Disassembled by hand, no tools needed
Long-lasting cataphoresis-coated spring for ideal corrosion protection
Hybrid AK style spring design prevents tilt
Unique internal design for smoother, more reliable feeding
Low-friction follower for increased reliability
Durable, lightweight, impact and crush-resistant reinforced polymer body
Long-lasting spring design for extended duration in loaded storage
Round-level windows and indicators on both sides indicates from 10 to 30
Extended floorplate for improved magazine handling with gloves and gear
Compatible with double and triple mag pouches
Over-travel protection, stops on the follower for reliable spring operation