The ProMag AR-15 5.56mm Roller Follower 40 Round Magazine fits AR-15 5.56mm rifles. The magazine body is constructed of a proprietary DuPont Zytel based polymer and patented anti-tilt roller follower. The magazine spring is formed from heat treated chrome silicon wire and is made in the USA.
- 40-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 the USA