Just understand with these guns like the Escort that has the barrel mounted rail and the non removable high profile front sight , if you mount red dot on the gun with the smaller sight window , you will probably be co witnessing with the front sight ... I feel some of these gun's were more for scope mounted sight... so something to think about in buying these barrel mounted rails and high profile front sights that are not removal... I fixed the problem with mine by adding 1/2 riser between the pictinny mount on the red dot and rail... which now i can also see and use my sights also... if you don't mind the co-witnessing then you want need the riser...