223 Laser Bore Sight Red Dot In-Chamber Cartridge, The Best .223 REM / 5.56 Brass Laser Boresighter to align the Firearm Barrel and Sighting

Put in the batteries (easier if you do the first two together, then add the third), it turns on, insert it in the bore. I aligned my iron sights and my red dot in no time. Excellent tool. Tip; when zeroing 223, consider a 50/200 meter zero, and get the 10/50 targets available on line. Follow the directions to get a 50 yard zero at only 10 yards. The target has two bullseyes.From thirty feet, I place the laser on one bullseye, and the sights on the other. Done. I did this in my garage in less time than it took to type this review. Now I am off to the range, and have minimal work to do to perfect my 200 yard zero. Not to mention saving a few rounds. Don't forget to remove the batteries when you're done, and keep that laser away from the eyes.

I really appreciate the fact that you actually ask your customers opinion The product is great however the batteries that are included have the worst battery life I’ve ever encountered they lasted less than 15 minutes and had I known this I would have purchased a few spares before I drove out to my ranch (which is 43 miles from the nearest store that sells that size ) to site in my rifle. You have a customer for life Thank you Lt.Col Murway

worked for like 1 min.

When I first recieved this I didnt think it would be bright enough to go 25 yards. I waited until the sun started to go down and it was fairly dark out. It was easy to use and easy to see. Only took 5 minutes to do two guns. This isn't going to be perfect but it should get you on your target and should only take a few rounds after that. This will definitely save you money because rather than going through who knows how many rounds trying to get it close, this will safe time and can be reused. Saves time and money and the headaches.

The laser light is too dim to shine on the wall 30-feet away Addendum: Sam from Panamoo called and apologized for the problem, citing an Amazon anomaly of returned materials being sent out to fulfill new orders, which sounds right in that they crossed out my earlier review. Sam was kind enough to send a new device that works very well.

Worked well except the so called long lasting batteries lasted maybe 10 min, enough to do one rifle. Also replacement batteries are hard to find.

I don't write many Reviews, but on occasion, I encounter a Product/Service that is either Terrible - or Excellent - enough to spend my time to Express my View(s) on a given situation. I have Laser Bore Sights in multiple calibers and (so far) have not been disappointed with any of them. And although I won't know the "Accuracy" of this Bore Sight for a while, I'm extremely pleased with the Overall Value of the Product - and Especially Impressed with the Supplier. Sometimes there are Issues with a Product in one Fashion or another - whether it's Damage, Delivery, Contents, etc... - and my experience "initially" was not what was supposed to be, however... The Supplier was Phenomenal to work with and ultimately Rectified the Issue Well Beyond Expectations. Subsequently, there is No Doubt in my mind that the Product will be at least as Phenomenal as the Supplier themselves and am Grateful I chose this Supplier/Product to Purchase.

Being my first bore sight I would have thought this unit would have been better. I mean there isn’t much to it. The laser coming out was not always round. It was elliptical . Roll the lazier and it doesn’t stay centered. It in a circle, so depending on how you put it in the center is different every time. We used it a total of oh maybe 15 minutes? And the batteries are dead. You have to remove the batteries when not in use otherwise even if you unscrew the end till the light turns off! Then shake it it will turn on and off. Imagine it being in the handle of the gun or in your box. Every step you take the light will come on again. So! No I would not reccomend this unit. Bye one that turns on and off when you want it to with having to remove the batteries. Buy on with a clear round lazar spot.