MidTen in Chamber Bore Sight Cal Red Dot Boresighter 12-Gauge

This is a solid, precisely machined instrument with excellent battery life and accurate positioning. I used it to zero in a semiautomatic 12-gauge tactical shotgun with slugs and red dot sight at 20 yds. Spot on. Fits snugly in the bore, projects light visible in daylight, ejects cleanly. i’m going to get other calibers as well

Solid and very well made laser was very bright could have used an on off button ,but removing batteries after a quick use wasn't an issue this tool made my task super easy.

This is a good product that performed as expected. It chambered perfectly in each of the variant shotguns that I wanted to site in with the use of various red dot or laser aim devices. Saves a lot of time, ammo, and frustration.

The product is nicely made with a heavy brass and fit in my 12 gauge shotgun snugly. It does not have an on off switch and only turns on or off when you screw the head of the shell in to make it go on or screw off the head when you want it off. The shortcut for turning on and off is simply unscrew the upper fourth part, which is easy, and then tighten or loosen the threads far enough so the brass parts stay together.. This way you don't have to take the batteries out and then put in again when you want to use it. The laser only works when the batteries are tight, which of course is what you want. Keep the nice container it comes in and lay it back in the shaped foam insert that holds it. You need to know that the green laser is very good but you won't be able to see it on a distant target if it is bright out. Wait till evening nears, or a very dark cloudy day, to bore sight. A simple method is to bore sight it on an object that is at the desired distance you want it on a darker day. Then you simply adjust your gun sight to the green dot. It is right on then. Saves a lot of time and shells. It is spot on and I am very satisfied with this product. It costs a little more than many bore sighters for a shotgun but you get good quality. I am glad I have it. Only gave 4 stars due to on/off capabilities. Other than that, this product is very good

Works Great!

Works perfectly! Thanks

I am really impressed with this MidTen 12 ga Laser Bore Sighter. We mounted a scope on our Remington 870 slug gun after this last deer season and tried to sight-in the scope by simply firing slugs down range. After 2 boxes of slugs we still were a good 10 inches from center. We shifted approaches and found this bore sighter on Amazon and the price was worth a try. The construction of this bore sighter is very heavy and solid. It slid easily into the chamber just like any other shell. With the laser light beaming brightly down range we were able to adjust the scope and had it spot-on in a matter of minutes. We still need to confirm the scope alignment at the range but I'm confident it is spot-on. This was a very good purchase for basically the cost of a few boxes of shells and we have it for future use. I would definitely recommend this bore sighter.

The perfect tool to sight in my red dot.

Works as intended!great quality!

So far so good. Batteries are better than ones I have purchased for other rifles.

It gets you on the paper. It's certainly not going to do a perfect job, but for a scatter gun it's fine.

Excellent produit, je vous recommande le vert puisque le faisceau est visible à l’extérieur le jour versus le rouge qui n’est pas visible à l’extérieur de jour.

Centers well in Chamber. Decent lazer 4 - 25 yrd sight in Daylight