Simple, Fast and effective are three words that accurately describe the Vortex VMX-3T Magnifier. This 3x Magnifier features an integral picatinny-style flip mount that transforms your 1x power red dot into an extended range 3x optic at the push of a button. Lightweight and tough, the VMX-3T is hard coat anodized and CNC machined from solid block aluminum. This reliable unit is nitrogen purged and O-ring sealed for 100% weatherproofing, making you extremely effective under any conditions. Backed by the legendary Vortex VIP unconditional lifetime warranty.