ARMORTECH SIGHT by T.R.U BALL.  w/MATHEWS HARMONIC DAMPENER.  T.C.V. (True Center Vision) is provided due to the hour-glass or Venturi shape inside scope which supplies a cicular sight picture reference even when viwed slightly off-center Individual micro-pin adjustment Armor fiber technology provides 100% protection to fibers that are fully enclosed inside the tubing, leaving no exposed fibers Windage & elevation knobs have 20 clicks-per-revolution adjustability 2nd/3rd Axis adjustable Flip level for left hand use Thumbscrews, knobs & major parts are CNC machined from aircraft aluminum