PMAG 5Rd Limiter, 7.62x51, Fits PMAG Gen M3, Pack of 3 Installation of the Limiter is simple The PMAG Minus 5 Round Limiter installs in 10, 20, or 25 round 7.62x51 LR/SR GEN M3 PMAG bodies, reducing the magazine capacity by five rounds. Pack of three