The #40(TM)L has all the features of their excellent 40A2 sight” but has a lower profile” allowing more clearance for mounting optics to your flat-top receiver and allows lower mounting” miniaturized windage knob with .75 MOA adjustment and a very new and unique dual aperture. Folded height is only .610″.
A.R.M.S., Inc. Sight, ARMS #40 Low Profile, Black 40L
