Bore Sight Collimator Green Dot Boresighter Fit Any 0.177 to 0.780 Caliber Firearm

Brand?GOODTACNew style-simple and beautiful appearanceInstructions: 1. Assemble the battery into the boresighter. 2. Select the proper adapter that fits in the barrel of your firearm. 3. Assemble the adapter on the small end of the boresighter, then screw the adapter tight to make sure the adapter will be hold well. 4. Push the small end of the boresighter with the adapter into the barrel of your firearm. Make sure the boresighter is inserted in until it is sung with the crown of your firearm. 5. When you turn the light on, a small green dot will be emitted. And then you can adjust your scope?s windage and elevation so that your crosshair aims at the green dot.Laser radiation: avoid direct eye exposurePlease Note: In order to facilitate transportation, the battery and electronic compartment have been installed in the collimator, and the collimator can be tightened after receiving the goods, and then it can be used. Specifications:Material: Aluminum.Light Color: Green.Max output: <5mWClass IIIA laser productWave length: 535nmMaterial: 6061-T6 AluminumSeven bore adjustable adapters to fit all .177-.78 caliber pistols and riflesLeght: 150mm, Head DIA:19mm, Tail DIA:4.3mmThis unit is with three pieces of CR1/3N batteries installed.The laser is adjusted accurately leveled from the factory.What including: 1x Laser Bore 7x Adjustable Adapters 1x Screwdriver 1xHex key 3x Batteries 1X Padded Storage Box

• Easy to use: More convenient and accurate than scope and sight alignment.
• Class IIIA laser, less than 5mW.
• Seven bore adjustable adapter to fit any.177-.78 caliber pistols and rifles.
• Comes with one set battery(CR1/3N) which can be lasted 12 hours.
• High accuracy to reduce cartridges and shells wasted, sighting range of the bore sight is 15 to 100 yards.