Red White & Blue are importing these quality polymer AR15 mags for any .223 Remington/5.56x45mm or 300 Blackout rifle. Holding 30 rounds this rugged magazine includes grippy surface designs, a no tilt follower, a removable baseplate and a protective feedlip cover and it comes in tactical black. This model also features windows which allow you to check the capacity status of the magazine at a glance.