Precise alignment within 5 inches at 100 yards, ensuring that the laser sight is true to the barrel's actual point of aim; 2-4 mW power output for clear visibility in various lighting conditions; 40-50 minute runtime provides plenty of time to accurately sight in multiple firearms without the worry of battery life; Easy to use - insert the boresight into your chamber and the laser projects on target, helping you adjust your optic or sights; Crafted from premium components and materials ensuring longevity for repeated use; Compact design ensures that the bore sight doesn't take up much space in range bags or gun cases; Includes L736F (LR41) batteries that provide ample power for prolonged use; Solid construction ensures that the laser sight can withstand the bumps and knocks; Ideal for hunters, casual or competitive shooters, and anyone looking to improve their shooting experience; Covered by GRITR "Unlimited GRIT" Lifetime Warranty