Berrys 405 Ammo Box 223 Rem5.56x45mm NATO 50rd Smoke Lid W/Black Bottom. s Ammo Boxes are made from high impact polypropylene for increased strength against cracking chipping warping expansion or contraction. Our Model #405 50 round boxes feature our new stronger flip-top design allowing the securing of ammo storage with easy one-handed operation. Along with a translucent lid they now come with a black base for increased strength and a clean look. They are stackable they carry a lifetime warranty and they are made in specialized factories.Available in Blue Smoke and Clear lid colors#405 Ammo Box Cell Dimensions: 2.33? OAL x .42?Caliber Fit :.222 Remington.222 Remington Magnum.223 Remington5.56 x 45mm NATO.17 Remington.204 Ruger.300 AAC Blackout Specifications for Berrys 29682 405 Ammo Box 223 Rem5.56x45mm NATO 50rd Smoke Lid W/Black Bottom: Manufacturer: Berry's Manufacturing Number of Rounds: 50 Dimensions: 2.33 x .42 in Fabric/Material: Polypropylene Package Contents: Berrys 29682 405 Ammo Box 223 Rem5.56x45mm NATO 50rd Smoke Lid W/Black Bottom Berrys 29682 405 Ammo Box 223 Rem5.56x45mm NATO 50rd Smoke Lid W/Black Bottom