20 Gauge Chamber Laser Bore Sighter
Designed for use in all shotguns of the specified gauge.
Features:
• Material: Brass
• Laser Wavelength: 635 nm
• LED Type: Visible Red Laser
• Sighting Range: 10-75 yards
• Dot Size: 1.5" @ 100 yds
• Laser Beam: <5 mw
• Batteries included: 4x AG3 / LR41.