Leupold LCO/D-Evo on an 11.5" gun?

Hi all, definitely looking very seriously at the new KAC SR-15E3 CQB MOD 2 SBR, coupled with their CQB suppressor and some control accessories. Just wondering if the D-Evo’s 4X magnification would be overkill on the little guy. Could it still be useful when used in conjunction with the 1x LCO? I remembered Knights guns being a lot more expensive, but looks like the SR-15 models aren’t gonna rise above $2,500 (not including tax stamp). Would Leupold’s new offerings be beneficial for the shorty?

Also what is the verdict of using 40-round PMAGs over conventional 30-rounders or Lancers.

You have been a member here for over 2 years. We have two choices. Optics/Mounts or NFA.

https://www.m4carbine.net/forumdisplay.php?9-NFA

https://www.m4carbine.net/forumdisplay.php?13-Optics-amp-Mounts