The IQ Pro One offers RETINA LOCK TECHNOLOGY which provides instant feedback that will identify even the slightest torque or anchor point change. Micro adjustment knobs that allow quick and simple adjustment of the elevation and windage to precise positions. Dual position mounting gives you the ability to mount your sight to your particular shooting style. Tool-free locking knobs allow you to lock your windage and elevation positions in place without the use of any tools. Rapid high pitch one pin design for quick range adjustment 50% smaller Retina Lock Alignment for twice the sensitivity which will increase downrange accuracy Precise incremental adjustment windage and elevation knobs (.0015 per click) Tool-free locking knobs allows the windage and elevation to be locked in place without the use of tools Adjustable zero stop Fully enclosed .019" fiber optic pin Dual position mounting allows the sight to be mounted to your particular shooting style Adjustable 2nd axis Built-in sight level 2 marking sight tapes Threaded for optional magnification Pro One lens