Marksman Aim Stability is one of the Arms Augmentations in Deus Ex: Mankind Divided.
Description[]
The direct practical effect of the Aim Stabilizer is to reduce the radius of the 'traveling reticule' displayed on the user's optic interface, designating the target zone generated by a given firearm. The motion-dampening, stability-inducing augmentation narrows the fire zone, allowing the user to aim at targets with greater efficiency while moving.