XISICO USA, INC(Rex is the brand) has been designing and manufacturing high quality optic products since 2003. We are excited about serving you in 2014 and for many years to come. XISICO USA was founded on the premise of making available to all hunters and shooting sports enthusiasts the optic equipment they demand. Our optics are designed and crafted of exceptional quality, offered for sale at an exceptional price, and backed by exceptional service. XISICO USA, INC has proven that this formula results in a very happy and satisfied customer that not only will return again, but will also recommend Rex Brand to others.