NCSTAR RED LASER SIGHT WITH UNIVERSAL BARREL MOUNT -
Red Laser Sight made from all aluminum construction. It has a
universal barrel mount that fits most rifle barrels. 635-655nm Red Laser Beam
<5mw Includes 3 AG13 Lithium type batteries and mounting tool. It has a
standard on/off cap switch. Dimensions (inches): 2.42L x 0.58W Weight: 0.70 oz.