PRO-MAG AR-15 MAGAZINE – 5.56 NATO, 40/RD, STEEL LINED BLACK POLYMER, ROLLER FOLLOWER

PRO-MAG AR-15 MAGAZINE – 5.56 NATO, 40/RD, STEEL LINED BLACK POLYMER, ROLLER FOLLOWER
DESCRIPTION:
? 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 USA