.17 TO .22 CALIBER LASER BORE SIGHTER LBS-1722-140    MSRP $64.95 SPECIFICATIONS: COMPATIBLE CALIBERS:.17 - .22 CALIBER POWER OUTPUT: class IIIa, 5mw LASER MODULE: 650nm BATTERIES: 3-A76/LR44 BATTERY LIFE: 1.5 hours + WEIGHT: 1oz LENGTH: 5" YARDS: 500 yards at night BARREL: Minimum 2.5 inch barrel required. Additional Videos Each kit includes a laser bore tool, 2 adapters, batteries, carrying pouch, Daylight Laser Target and instructions.           LBS-1722-140   .17 TO .22 Caliber Laser Bore Sighter Here’s a LaserLyte Laser Bore Sighting Kit designed to work with the new and very popular .17 caliber firearms. This unit is CNC machined from aircraft aluminum and Class 1 hard anodized for strength. It is 4.75 inches long and .625 in diameter at the head, weighing less than 1 ounce. It operates on (3) inexpensive A-76 type batteries which power the laser for over 1.5 hours of continuous use.