ProMag RM40 Standard Black Detachable with Roller Follower 40rd 5.56x45mm NATO for AR15 UPC: 708279012549

ProMag’s Rollermag reinvents the wheel by adding them to an anti-tilt follower, in a Technapolymer magazine body. Experience a smooth, anti-tilt rolling feed with the revolutionary Rollerfollower for maximum friction reduction. Magazine is built with ProMag’s anti-fatigue chrome silicon springs - so you can keep them loaded and stashed for up to 6 years without worry.br /br /Features:br /br /- Technapolymer constructionbr /- Rollerfollowerbr /- Chrome Silicon springsbr /br /Specifications:br /br /- Color: Blackbr /- Material: Polymerbr /- Capacity: 40br /- Ammo Window/Witness Holes: Nobr /- Compatible With: AR-15