  In this paper, we define the 2-complete Artin complex and show that it is
systolic for locally reducible Artin groups. The stabilizers of simplices in
this complex are exactly the proper parabolic subgroups which are "2-complete."
We use this systolicity to show that parabolic subgroups, with 2-completions
that are not the whole Artin group, are weakly malnormal. This allows us to
conclude that many locally reducible Artin groups are acylindrically
hyperbolic.
