Changing from iron sights to a reflex sight takes some training. If you haven’t worked the mechanics, adding a reflex sight may actually slow your shooting down initially. The SPOT is a very simple and cost effective way to train for your reflexive optic. The SPOT fits on your your SIRT slide (110 models currently) and uses the red trigger take up laser to mimic the dot in a pistol mounted optic (e.g. an RMR TM).
Allows you to see the red dot even when it is outside of the sight.
Durable plastic stands up to rigorous training