The Ultimag 30R is a 30-round 5.56×45 NATO (.223 Remington) polymer magazine for AR15/M4 compatible weapons with transparent windows for rapid visual confirmation of remaining rounds.
The Ultimag 30R is made to provide a strong durable and reliable magazine solution using high-grade materials.
Advantages:

• Multi-textured gripping surface for secure grip when handling the magazine
• Unique floor plate for versatile coupling options
• Disassembled by hand no tools needed
• Long-lasting stainless steel cataphoresis-coated spring for ideal corrosion protection
• Hybrid AK style spring design prevents tilt or binding
• Unique internal design for smoother more reliable feeding
• Low friction follower for increased reliability
• Durable light weight impact and crush resistant reinforced polymer construction
• Long-lasting spring design for extended loaded storage duration
• Translucent round-count windows on both sides combined with an indicative follower for rapid visual identification of remaining rounds 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
  Compatibility:
• 5.56×45 NATO and .223 Rem M16/M4/AR15 variants