ProMag RM40SL Standard 40rd 5.56 AR-15 Magazine
Product Features & Specifications ProMag RM40SL AR-15 223 Rem,5.56 NATO AR-15 40rd Black Steel Lined Magazine is compatible with your AR-15. It is constructed of DuPont Zytel polymer with anti-tilt mag follower and mag spring formed from chrome silicone wire.
