Selling my Vortex Viper PST 2.5-10x32 FFP MRAD scope with ADM Recon mount for $850. Willing to trade for ACOG TA31 RCO M4 Reticle. Comes with the original box and paperwork with the brass zero-stop shims and Vortex' amazing lifetime warranty. Has lived on my BCM 16" middy for the last couple years and has performed flawlessly but I just dont need the magnification. ADM Recon mount has been reliable and returns to zero if taken off. Let me know if you have any questions.