I have a 3-18 MK5 and a 4-16 ATACR but am looking to pick up a 5-25. Itll cost me about a grand more to go ATACR. Low light performance is of upmost concern as itll be used for hunting and behind a CNVDLR clip-on. Reticle choice between the PRS2 and MilXT isnt a concern and in my opinion durability is plenty good with the mk5.