STONESKY 40 S&W Laser Boresighter Brass 2X Battery 40 Cal In-Chamber Red Dot Bore Sighter For Hunting

40 S&W Laser Boresighter Brass 2X Battery 40 Cal In-Chamber Red Dot Bore Sighter For Hunting Description: Many types of driller, u can choose what you need! 2) projects a straight laser beam that allows precise optical adjustments to be seen in its areas and monuments without firing and ammunition. 3) Ideal for the range and ensure that your weapon remains zered after traveling. 4) Easy to use. 5) Simply place the batteries in the end cap-Turn and end cap to turn-on and place in the chamber. 6) Laser output less than <5 MW. 7) 635-655NW wave 8) Precision made 9) batteries included. 10) full warranty of target sports Packaging: 1 x laser Boresight (including 2Pcs button battery)