ProMag 5.56mm Roller Follower 30rd Steel Lined Black
- 30-round magazine
- Fits AR-15 5.56mm rifles
- Over molded stamped steel feed lips and magazine catch
- Magazine body constructed of a proprietary DuPont Zytel based polymer
- Patented anti-tilt Roller follower
- Magazine spring formed from heat treated chrome silicon wire
- Made in USA