Tri-rail barrel mount with integrated visible class 3 red laser.
• Barrel Mount will Fit Most Rifle Barrels
• Fully Adjustable for Windage and Elevation
• On/Off Slide Switch is Easily turned On or Off with your Forward Hand
• 635-655nm Red Laser Beam <5mw
• Dimensions: 2.15"L x 2.08"W x 1.52"H
Model: NcStar ATRLS