Designed for today's common MSR/AR and bolt-action platforms, the Tango4 3-12x42mm riflescope is the ideal solution for CQB/mid-range tactical engagements, 3 Gun competitions, and hunting. This scope features 4x optical zoom with innovative magnetic LockDown Zero System adjustments and illumination in a 30mm one-piece maintube.The Tango4 includes one SBT (SIG Ballistic Turret) custom-lasered elevation dial matched to your ballistics and environmental conditions. Low-dispersion (LD) glass provides industry-leading optical clarity for any situation while MOTAC motion-sensing technology for auto-off/wake-up ensures optimum battery life and performance. The Tango4 is offered in first focal plane and uses an MRAD illuminated reticle. This model features dependable waterproof (IPX-7 rated for complete water immersion up to 1 meter) and fogproof performance.