Universal Laser BoreSighter for .17 to .78 Caliber Pistols, Rifles, and Shotguns, Red or Green Laser Boresight Kit with Press Switch

Specifications: Material: Aluminum Alloy. Light Color: Red-type; Green-type Length: Red 6.5" ; Green 7” Big end Diameter: 0.8". Small end Diameter: 0.169". Max. Output Power: ≤ 4.9mW. Class: IIIA. Wavelength: Red: 630nm; Green: 532nm. Batteries type: CR2 800mAh. Adapters of Specifications: [Adapter #1].17 to .18 Cal. [Adapter #2].22 to .243 Cal. [Adapter #3].235 to .27 Cal. [Adapter #4].27 to .315 Cal. [Adapter #5].30 to .36 Cal. [Adapter #6].335 to .40 Cal. [Adapter #7].37 to .45 Cal. [Adapter #8].43 to .50 Cal. [Adapter #9].47 to .55 Cal. [Adapter #10].535 to .61 Cal. [Adapter #11].57 to .64 Cal. [Adapter #12].69 to .78 Cal. How to use the Bore Sighter? 1. Install the battery into the boresighter. 2. Select the proper adapter to fit in the barrel of your firearm. 3. Install the adapter on the small end of the boresighting tool. 4. Gently push the small end of the bore sighter with the adapter into the barrel of your firearm. Make sure the boresight tool is inserted deeply enough until it is snug with the opening of your firearm barrel. 5. When you turn the light on, a small Red/Green dot will be emitted. And then you can adjust your scope’s windage and elevation so that your cross hair aligns with the red/green dot. Package Includes: 1 x Bore sight 12 x Adapters (Fit Calibers from .17 to 12ga) 2 x CR2 800mAh Battery 1 x Screwdriver 1 x Instructions Warning: Keep red/green dot beam away from eyes. Before boresighting your scope, make sure that the firearm is unloaded and the muzzle is pointed in a safe direction. After the sight is adjusted, make sure to remove the sight tool and adapter from the firearm.

• Easy to Use: This green light boresighter is design to helps improve the accuracy of most guns. Provides accurate reference to zero points in optical or iron sights, reducing cartridge and shell waste, saving you time and money.
• Useful pushbutton switch: Push-button switch design. just lightly press to turn ON/OFF ,So it’s convenient than other gun boresighter without switch, easier to control.
• Longer Battery Life: Includes 2pcs 800mAh CR2 Lithium batteries (commonly 700mAh) for longer battery life.
• Complete Caliber Adapters: Comes with 12 adapters for.17 to.78 caliber pistols, rifles, and shotguns. So you just need to choose the appropriate size adapter for your gun and insert the bore sight into the muzzle.
• Laser Standard: Class IIIa laser, power is less than 5mW and wavelength is 532nm. The sighting ranges from 100 to 200 yards, the darker the environment the farther it goes, the red dot size is 1 inch only at 50 yards, so keep your sighting more accurate.