Sig Sauer Tango 4 FFP Rifle Scope, 4-16x44mm, Illuminated MRAD - SOT44002.pDesigned for today's common MSR/AR and bolt action platforms, the Tango4 4-16 x 44 mm riflescope is the ideal solution for mid to long range tactical engagements, designated marksmen and hunting. It has 4x times optical zoom with illumination in a 30mm one-piece main tube and low dispersion (ld) glass provides industry leading optical clarity for any situation. It features motac (motion activated illumination) powers up when it senses motion and powers down when it does not. Provides for optimum operational safety and enhanced battery life. Dependable waterproof (ipx-7 rated for complete immersion up to 1 meter) and fog-proof performance. Lock down zero system on the Tango4 features a resettable zero, zero-stop and auto-locks down at zero.