Tangent Theta 5-25x56mm Professional Series Riflescopes is the Ultimate Precision for Professional Shooters. When the mission demands absolute precision trust the Tangent Theta Professional Series. Designed for professional marksmen competitive shooters and military/law enforcement operators these premium riflescopes deliver industry leading repeatability optical clarity and mechanical performance. The exclusive TOOL-LESS RE-ZERO feature lets you reset the turret zero in seconds no tools no hassle no downtime. Whether in competition or the field you can make fast precise adjustments and get back on target instantly.