Ideal for attaching your favorite accessories to your AR, the Sun Optics Quad Tactical Rail has been designed to provide you with a stable platform on which to mount your optics. Rail has been precision CNC machined to be incredibly long lasting and reliable. Four military spec Picatinny rails with QD swivel attach for a positive fit, function and reliability. Made of T-6160 aircraft grade aluminum alloy construction. Lifetime Warranty Ideal for attaching your favorite accessories to your AR, the Sun Optics Quad Tactical Rail has b Rail has been precision CNC machined to be incredibly long lasting and reliable Four military spec Picatinny rails with QD swivel attach for a positive fit, function and reliab Made of T-6160 aircraft grade aluminum alloy construction Lifetime Warranty