Check the listing for details. Insight Technologies AN/PEM-1 Laser Borelight System-LBS 300. Condition: Used. Listed at 500.00 USD. Recommended Best PracticesThe LBS system is safety class 2 laser, that means pointing it in your eyes for more than 10 seconds will cause eye damage. Do not do this. Whether it's with the naked eye, though a binocular or telescope, or a mirror like surface.Make sure to remove the device from the weapon before any live fire. Negligent discharges right into your very nice and hard to find borelight is often catastrophic to the device, the weapon, the user, and human dignity.Do not store the device with the batteries still installed. The soft carrying case has two nice pouches for AA batteries to the left of the mandrel pouches.ContentsLaser Borelight Assembly Soft Carrying Case with Belt LoopMandrels (5.56mm/40mm, 7.62mm, 50cal)Distance Gauge, 10m12 Zero Targets for various Weapon Systems included.Laser Bore-light Assembly ModelsBoth versions of the Laser Bore-light System where designated for different branches of the military. The 300 for the Army, the 050 for the Marine Corps. The only functional difference is the Army version (300) has an additional power mode that allows the user to boresight when NVGs are being used.SwitchPositionLBS-300 OperationOFFThe Borelight will not operate. Prevents inadvertent emission of laser energy.GOGGLEThe Borelight will operate in a very low power mode. Used for boresighting with a night vision device at night and other low light conditions, when reduced blooming is desired.LOW (same as on)The Borelight will operate in a low power mode. Used for boresighting in any lighting condition when night vision devices will not be used.PULSEWith the Borelight / Mandrel assembly inserted into the muzzle of a weapon, the laser will activate momentarily when the weapon is dry fired. Used for marksmanship training. SpecsUS Issued laser boresighting system enable precise zeroing of weapon optics and aiming devices without the need for live weapons fire.Compatible with 5.56, 7.62, 50cal, and even 40mm weapon platforms.Single AA battery operates for 8 hours of continuous use.Red laser 0.9 mW maxim output, ≤0.5 mread Beam Divergence, 650(±30nm) Wavelength