Issues with armor nobody mentioned... If you don't train and practice wearing it then you will be ineffective in the field. Steel armor has the risk of spalling, meaning if you take a hit fragments can mangle your body around the impact, also a possibility is ricochet, causing damage to you...
How about an even trade for an ati omni hybrid with an NC star red dot?
Similar to the link below
https://www.budsgunshop.com/mobile/product/41118/american+tactical+imports+omni+hybrid+maxx+p3+semi-automatic+223+rem%2f556+nato++16%22+30rd