Magpul 5.56X45 NATO /.223 REMINGTON DUMMY ROUNDS FOR AR15 5/PACK MAG215-BLK

Solid, inert, dummy rounds let you safely test the feeding, extraction, and magazine function of your rifle without the worry of accidental discharge. Lets you dry fire without risking damage to the firing pin. Glass-fiber reinforced polymer material can’t corrode or cause corrosion. Precision molded to duplicate the Remington .223/5.56mm NATO round in five critical dimensions, and can be cycled and ejected the same as live ammunition. Sold in 5-Paks.