The Legacy Sports ATIK5R223 offers the unique Ammo Boost Advantage, an innovative feature that facilitates your rifle\'s conversion to accommodate detachable magazines. Designed to be user-friendly, this detachable magazine kit can be installed and ready to use in just a few moments right in the comfort of your home. Each kit comes inclusive of detailed instruction, a polymer magazine, and a conversion trigger guard.In terms of compatibility, this 5-round magazine is perfect for Howa 1500, Weatherby Vanguard, Mossberg 1500, Smith & Wesson 1500, and Interarms 1500 rifles. It is designed for short action calibers specifically like the 204 Ruger and 223 Remington.