This universal Schmidt Bender PMII Ultra Short 3-20x50 L/P H59 .1 MRAD Locking Low MTC CCW - Capped Windage Turret 667-911-592-F1-E8 has a comprehensive total adjusting range of 260cm for very large distances, elevation and windage turrets are equipped with a locking function and a double turn, and parallax compensation from 25m to infinity.