Osprey Global (Green or Red) Laser Boresight for Most Popular Rifles : Choose from 7.62x54,7.62x39,8mm,50BMG,30-30,300Win,30-06,22-250,338Lapua,30Carbine,224Valk,22LR, or 308

Works great for dialing in your scope. Laser shines straight out the barrel and all you have to do is set the cross hairs on the dot and you set your scope up without waisting ammo

This is your basic laser boresighter, except for one feature that makes it much easier to use tan any other Brand-X laser. It has a switch in the based that turns on the laser when the bolt is closed. This means that you can leave the batteries installed instead of taking them out after each use. Bit time saver and PITA eliminator. I'm going to make this my go-to brand for recommendations.

Easy to unpack and assemble the included batteries. Solid construction. Includes a pressure switch on the back so the laser is only on when the bolt is closed on the device. Clear dot. Good value for the money, will be ordering additional calibers.

It does chamber! That’s good however the laser does NOT come on unless you pack the primer area with paper. The laser is weak. My recommendation is DO NOT BUY. I’m returning this. I did get it to work by ok by cutting and applying a small square of duct tape to the primer area

This product did exactly as it said. I was zeroed in in no time

I bought a new scope for my Valkyrie and wanted to laser bore sight it so I wouldn't waste too much ammo. The laser bore sighter has an on and off button built into the base of the "case". The laser activates when inserted into the chamber and bolt touched the back of the bore sighter. This makes the batteries last longer cause the laser turns off when removed from the rifle. I wish all my laser bore sighters had this feature. Rarely does a bore sighter get you on the bullseye and this product is not different. It does get you on paper where you can zero you rifle at whatever distance you need. The laser is bright enough to be seen inside or in low light but not really visible in bright day light. All my other laser bore sighters have the same issue. I read some complaints in the review and took a chance on buying this product. I'm glad I bought it because it works as good as all my other laser bore sighter, great. Maybe the bad review are customers that received a defective unit. I would recommend this laser bore sighter to a friend.

This laser chamber save me a lot of money in ammunition, Seems to fit in the boar really tight and has a button on it to turn the laser on and off with the bolt.. Is very handy.. My lapua was cited in in three shots at 100 yrd

Push button switch seems to make "intermittent" contact when pressed by hand and the rifle bolt seems to have more difficulty in turning the laser on consistently. The laser seems to dim for no reason at times. In addition, I believe the laser aim point is off a bit more than usual versus the barrel centerline. i have other Osprey boresights and arbors and they seem to be more "accurate" in general.