The Gray Ops Billet Slider Ammo Box is the easiest most convenient way to carry 22LR ammo! Safely store and access 22 ammo from factory 50 ct. plastic sleeves. Use the provided sleeves, or use the ones from that come with many different brands of ammo such as Lapua center-X and Wolf. FeaturesMachined from 6061 aluminumBlack anodize finishConveniently placed knurled center button which locks/unlocks the lidsHolds 2 - 50 round sleeves for a total of 100 roundsTight tolerance sliding lids exposing each 50-round sleeveBall detent indexer giving a notched feel every 5 rounds exposedLids have a built-in hard stop to prevent them from sliding offMachined-in finger slots for easily grabbing/swapping out the plastic 50-round sleeves