RCBS AR Series Small Base Die Set .300 AAC Blackout Taper Crimp Seater - 22407

This RCBS AR Series die set includes a Small Base Sizer Die designed specifically for semi-automatic AR-platform firearms and a Taper Crimp Seater Die for complete reloading capability. The small base sizing ensures reliable rechamber in AR weapons, making it essential for progressive reloaders working with .300 AAC Blackout ammunition.