Achieve precise bore alignment with the Ghost Viper Tactical Universal Green Boresighter, designed for quick and effortless calibration on all firearms without the need for tools. Its magnetic attachment to the muzzle ensures more accurate alignment with the bore, eliminating the risk of damage commonly associated with arbor style bore devices. Featuring a high-power, long-range daylight visible green laser, this boresighter offers superior visibility even in bright outdoor conditions, making it the ideal choice for precision shooting. Each boresighter comes ready-to-use allowing you to start calibrating your firearms immediately upon receipt. Enhance your shooting experience with the Ghost Viper Tactical Universal Green Boresighter, the ultimate tool for quick and precise bore alignment. INSTANT CALIBER ALIGNMENT : Easily attachable to all firearms without tools, this boresighter ensures quick and effortless calibration, saving you time and effort. PRECISE MAGNETIC ATTACHMENT : Featuring a magnetic connection to the muzzle, this boresighter provides more accurate bore alignment without risking damage to the firearm. HIGH-VISIBILITY GREEN LASER : Equipped with a high-power, long-range daylight visible green laser, this boresighter offers superior visibility even in bright outdoor conditions.