ProMag AR-15 5.56mm Roller Follower 30-Round Magazine, Black Md: RM-30
RM-30 - ProMag’s new 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 our ANTI-FATIGUE™ chrome silicon springs - so you can keep them loaded and stashed for up to 6 years without worry.
Manufacturer Number: RM-30