Detachable 10 Round Magazine Conversion Kit for Remington 700 .22-250 Caliber Rifles.p Made by Legacy Sports.p Made for target shooters and varmint hunters, these polymer body magazines allow you to turn your four round box magazine into a 10 round capacity detachable. Fits Remington 700 in .22-250 Calibers.p Kit includes Magazine and trigger guard.p