I'm leaning towards a Vortex Viper PST 2.5-10x44 going on the SCAR at some point.

The whole FFP thing sounds and looked cool but I don't think it's something I'd really care about at lower magnifications anyways. But I like the MRAD reticle and the illumination. 2.5 is would be fine for the short hunting distances I'd be looking at and 10x would be made than enough to play around with.