A.R.M.S. #40L STAND ALONE FLIP UP REAR SIGHT (LOW PROFILE)
The #40L™ allows lower mounting, miniaturized windage knob with .75 MOA adjustment and a very new and unique dual aperature. The #40L always deploys with the small peep (250-300m) aperture as primary. To switch to the large peep (close quarters) aperture, simply flip the small peep down. The low profile #40L will fit under most traditional powered optics and other configurations where the #40 or #40A2 would be too high.