Red or Green BoreSighter 177 to 12GA Caliber Rifle Scope Handgun Hunting Red/Green Dot Boresight Kit Press Switch Bore Sight 800mAh Battery

Works perfectly, easy zero, easy storage, fits most calibers, pistol and rifle, just buy it, it is 100% worth it. "Not a paid promotion"

Inexpensive, simple but well made little kit that makes basic initial bore alignment when first mounting a scope on a rifle or pistol fast and easy. Works well, nice case, and includes a complete array of plastic bore-centering adapters to fit almost any caliber rifle or pistol, including my .177 air rifles. Well written instructions, even includes a CR2 battery AND a spare. Five stars for quality, value and utility.

This thing is great - don't know why I didn't order one before now. Comes in a reasonably nice plastic case with foam cutouts, all of the various bore bits, the laser, 2 batteries, the instruction manual, and a warranty card. Instructions look DIY, but are easy to follow. READ THE INSTRUCTIONS and it'll work great for you. Bear in mind, you don't need to screw the bore bits in all the way - as you screw them in, the plastic flanges on the bit will widen. You just need them wide enough to match the width of your bore. If you want to test consistency/accuracy of the laser, just remember that if you rotate the laser as it sits in the bore, you may be tightening or loosening the bit. If you have to rotate it, I recommend rotating the laser in the bore in one direction, then rotate it again in the opposite direction to bring it back to where it was originally. If you're experiencing oscillation on the laser as you rotate it in the barrel, then (a) pull out the laser and tighten the bore bit, or (b) you're using the wrong size. ALWAYS double check to ensure the bit comes out attached to the laser when you remove the bore sighter. Accidentally leaving the bit in the barrel will obstruct the bore, which is super dangerous and will ruin your gun if you fire it. Only giving this 4 stars because the markings on the smallest bits are really hard to see. They could have marked the sides of the bits with larger numbers, or punched a series of progressively widening holes for them in the foam and provided a corresponding placement identification chart. Instead they just come in a plastic bag, which the foam is cut out to hold. Fortunately, that bag has the size markings on it, so it's not too bad, just kinda annoying. Aside from the size markings being difficult to read, everything else works great. If you don't already have a laser bore sighter, just buy this now. You'll make up the $35 purchase price in the ammo you didn't have to waste trying to sight in your optic.

This company sells a very good bore sighter at a fair price. It comes comes in a nice plastic storage box. There are two batteries in the box but only uses one, it also includes a screwdriver for installing bore tips and instructions on how to use the lazer. The bore adapters have a chart and are labeled for which size to use. The unit has proven to be very accurate for sighting in a scope to get you on target for shooting. It has a handy push button switch for on and off. I did a little test to see how true the lazer was. Without any bore adapter installed, you gently chuck it in a battery powered drill, point it towards a blank wall, turn it on and carefully pull the trigger on drill to slowly rotate bore sighter. This unit kept a steady lazer dot on the wall. An old, no name brand one I had, drew a 3 inch circle with lazer at 10 feet from wall. I can't say enough good things about customer service. I had a problem with one of the bore adapters, texted the company and got a prompt reply. They were very friendly and immediately sent out replacements at no cost and kept me posted on where it was in the mail. I would definitely recommend this product.

I rarely write reviews as products should work as advertised. This is an exception, the good kind. I have had 2 name brand laser boresights, but they all have 3 common problems. The batteries are tiny and you need 4 to operate the boresight, the red laser is hard to see outside unless you have reflective target, and the tail is too thick (won't fit in .17 HMR rifles) and too long (reaches the chamber area in EDC handguns and has no way to fit snug) This item corrects all that, the green shows up on my standard targets on a tree 50 yards out in the back yard or can be taped to the fireplace chimney in the backyard about 15 yards away. The battery is 1 lithium battery and I have been using this a few months now on that same batter...the unit comes with 2. So much easier to load this one. The tail of the product is great, it is thin enough I can use it for my .17 HMR rifles so no longer need the special bullet shaped laser boresight I bought for them. The tail is also short enough to give a solid fit and rifles and all my handguns. I have a Ruger LCP Max with a 3"+ barrel and it fits nicely. All my other handguns are from 3.5" up to 5" lengths, it fits them all without reach the more open chamber are where the national brands tail reaches. This product is the last boresight you need. easy to see and gets your sights or scopes on target before you get to the range. This puts you on paper when you take your first shots then you can make adjustments as needed. Fantastic product, I am happy with its performance and would highly recommend

The red laser works well indoors. I tried to use it outdoors and the red laser dot is not visible beyond approximately 12’.

Excellent and well built. I love that it comes in a sturdy case with individualized shadow cut foam insert for everything to call home. Not all jumbled together. Just what I needed to throw in my shooting bag and the price is right. Recommended for sure. Got me curious for what else they make.

This is one of the easiest boresighter I have used, very simple to set up and the IR's point of impact stays fairly consistent in relationship to the barrel. A lot less cumbersome to use than a traditional optical boresighter and certainly more precise than the cartridge-shaped ones, which are dependent on how they sit in the chamber. Definitely a time and ammo saver, it is a bonus that it can be used across different calibers with the appropriate adapters. Seller is also very responsive in replacing a missing adapter.