With the Ammo Boost Advantage, rifles can be converted to accept detachable magazines. This detachable magazine kit is easy to install and drop-in ready, so conversion can be made in a matter of minutes at home. Instructions are included with each kit which includes one polymer magazine and a conversion trigger guard. This 5-round model is compatible with Remington 700 BDL rifles in short action calibers: 223 Remington, 204 Ruger.