High quality, trouble free - Wheeler Professional Laser Bore Sighter

Pretty expensive, like most wheeler stuff is, but you get what you pay for. A solid tool made well to withstand torture and time. This thing makes laser bore sights look like toys. Those things are only as good as the bore stem not being bent (which they all are) and the laser diode being calibrated (which none are). It is a pain to get those things straightened out and calibrated using a rotating center or mill chuck by spinning it in the jaws. This wheeler laser is one solid muzzle stick on worry free sight tool. Of course, it's dependent upon your muzzle crown not being damaged or worn significantly. Nice tool. Must have green. The red version is horrible for day.