Field tested and approved by the North American Hunting Club, the Triple Duty universal green laser boresight is designed for sighting in .17 to .50 caliber rifles, shotguns and pistols. A key feature of the device is it doesn't have any additional attachment pieces to be lost. Engineered with a self-cantering arbor, the unit attaches into the end of the barrel as opposed to the inside, preventing metal from protruding into the Firearm barrel. Simply place the base of the bore sight onto the end of the barrel, and it will attach magnetically. Includes a carrying case, (1) CR2 battery, and instructions.

Feature:

Precision accuracy
Reliable and durable
Reduce wasted cartridges and shells
Compact and lightweight
Easy to pack and travel
Special retractable arbor for instant centering
15 to 150 yd range for sighting
On/off switch operation
Visible green laser LED