EZshoot Bore Sight Laser 9mm/223 5.56mm/243 308/12-Gauge Red Laser Boresighter with Portable Tin Case and Extra Batteries

Great and very accurate. Came with extra batteries. It did get stuck in barrell but great fit!

Nice and easy to use. Seems to be accurate for my 9mm/Osight.

Fits in both my MP2 and FPC (9mm). It’s really to zero my FPC. This laser works better than the one that goes at the end of the barrel. I have both and if I had purchased this EZshoot Bore Sight Laser 1st, I wouldn’t have wasted my money on the other one. It comes with a small case and extra batteries. It’s a great purchase.

Fits in my p365xl real snug. Points straight and I like that it comes with extra batteries. Definitely worth zeroing your optic with this before shooting

Easy to use, comes in a nice little hard case, and can't beat the price.

I bought this laser to align my "instrument's" green dot with the object that the laser sighted. Worked out well. You can also use it for dry-fire practice and helps with rapid sight acquisition. I had to use "instrument" instead of you-know-what due to the extremely sensitive sensibilities of whatever AI is monitoring these comments.

I purchased this to zero in the new green dot for my 9mm handgun. It was really simple to do, and I appreciate the metal case this came in. It holds the laser sight, and 6 batteries. It dropped in and fit perfect into the chamber of my handgun and turned on as soon as I screwed the end cap tight. It looks like a 9mm round and it just works. I will see how often I need to use this after my trips to the range. Quick tip, take out the batteries after using it. There's no on/off switch

I used this bore sight laser for my 9mm pistol and it worked great. It came perfectly lined up with my barrel and I was able to sight my optics in very fast and easily (after confirming the laser's accuracy by testing it on a already sighted in pistol). It has a bright laser that is easily visible. It comes in a metal can with multiple batteries included which is pretty nice, but you probably will never use all of them, since they last a long time and the boresighter will only be used for a few minutes at a time. You can always save them for other appliances though. The reason this got a 4 star from me was the installation of the batteries. For a younger individual like myself, I found it slightly tricky the first few attempts getting the battery lined up and screwed in since it was so small. I think for an older individual, or someone with shakier hands, it would be a bit more challenging to get the batteries in. However, the functionality of this boresighter was great and I do recommend this if you want to sight an optic in without shooting live ammo or going to the range.

I took the EZshoot Bore Sighter to the range to sight in a Red Dot sight on my rifle on a CLOUDY day and set up a target at 25 and 50 yards, and was unable to see the promised red dot at either distance. Therefore I would suggest to not purchase this particular "tool", as it is just not worth the money and time spent.