It’s FFP, ebr-2c reticle, parallax to 10 yards, 19 mil adj, 30mm tube. Friend in the know says very comparable to the gen 2 pst without illumination. I’ve got a line on a GREAT deal for a 6-24. My max range is 600y for the rifle it would go on. Keeps same reticle as my gen 2 razor. I’m not looking to beat it up. Talk me out of putting one on a 5.56 gas gun.