The ProMag RM30SL is a 30-round detachable magazine designed for AR-15 type firearms chambered in .223 Rem / 5.56 NATO. Constructed with a DuPont Zytel polymer body and over-molded stamped steel feed lips, it combines polymer durability with steel reinforcement at critical wear points. The RM30SL includes a patented roller (anti-tilt) follower and a heat-treated chrome silicon magazine spring for consistent feeding.
Key Specifications
- The magazine capacity is 30 rounds.
- Compatible caliber is .223 Rem / 5.56 NATO.
- The body material is DuPont Zytel polymer with steel-lined components.
- Feed lips and catch are finished with over-molded stamped steel.
- The follower uses a patented roller (anti-tilt) design.
- The spring is formed from heat-treated chrome silicon wire.
- The exterior finish is black matte.
- Overall dimensions are listed as 1.40 x 4.90 x 10.50 inches.
- This item is designed to fit AR-15 type firearms.
Built in the USA and backed by the manufacturer’s stated lifetime guarantee against defects, the RM30SL provides a durable spare or replacement magazine for range use, training, or general duty in AR-15 platforms. Its steel-lined feed areas and roller follower are intended to maintain consistent performance under routine use. For users seeking a dependable, serviceable magazine with reinforced feed geometry, the RM30SL is a practical choice that pairs polymer weight savings with steel durability.
This description was generated with AI and may contain errors. Verify specifications and legal restrictions with the manufacturer before purchase. Provided “as-is” without warranties or guarantees.




