Arms Low Profile Flip Up Rear Sight

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".

Features :

• Leans to the rear so as to fold in the correct direction if dropped and maintains their zero for accuracy