.177 Cal Red Laser Boresighter Bore Sight End Barrel Easy to Fit Revolvers Pistols Rifle and Air Guns

It comes with batteries and bits a number of calibers, saving a marksman quite a bit of money in not having to go to a range and sight in targets with live ammo

it worked good for .177 but not so good .22

It is easy to use. Will get your gun sighted in fairly close

The device is designed to be inserted into the muzzle of the barrel in such a way that it provides a secure connection that is perpendicular to the axis of the bore. The design is both small and lightweight, adding to the ease of the product by making it simple to use and maneuver with a variety of different kinds of firearms. After being fitted, the bore sight will offer a reference point that is both extremely visible and accurate thanks to the red laser that it emits. This laser beam makes it possible for sights, scopes, or red dot optics to be aligned quickly and accurately, which substantially simplifies the process of zeroing in on a target. I am now able to obtain ideal alignment with ease and confidence, regardless of whether I am practicing on the range or in the privacy of my own garden. This bore sight genuinely impresses me with its wide range of application possibilities. It is suitable for use with a diverse selection of weapons, such as revolvers, pistols, rifles, and air guns, among others. Due to the device's adaptability, I am able to use it throughout the whole of my collection, which frees me from the need to maintain several bore sights. Because of its dependability and versatility, it has become an essential component of my collection of weapons.

This product didn't work for me. It's certainly easy to use. You install the provided batteries and turn the thing on; you it in the barrel of your gun. sight through your scope, make adjustments to your scope (high/low; right/ left) and, lo and behold, it doesn't make any difference. The laser sight points in exactly the same place it did when you placed in the barrel. $10 down the drain.,

The Tipfun 9mm/223 Cal Red Laser Bore Sight has proven to be an indispensable tool for my shooting and firearm maintenance needs. This compact device offers a range of benefits that have significantly improved my shooting accuracy and convenience.The red laser is highly visible and provides a clear reference point for aligning my firearm’s sights. It has allowed me to quickly and accurately zero in my pistols and AR-15 rifles.The ease of fitting the bore sight into the barrel is remarkable. It takes just moments to set up, and I can easily remove it when I’m done. This simplicity has saved me valuable time during shooting sessions.The compatibility with both 9mm and .223 Cal firearms adds to the versatility of the bore sight. I can use it across different weapons, making it a cost-effective investment.The compact size makes it convenient to carry in my range bag or firearm case. I can take it with me to the range or when I’m out for hunting, ensuring that my firearms are always properly sighted.Using the bore sight has helped me save ammunition. Instead of spending rounds to adjust my sights, I can make the necessary adjustments more efficiently using the laser reference.

The Tipfun Bore Sight 9mm/.38spl Cal Red Laser Boresighter doesn't seem to fit 9mm barrels. It took extreme force to finally insert it into one 9mm barrel and I couldn't even get it past the first O-ring in another. I had to apply oil to before making any progress at all. I did consider removing the O-rings but then it was loose and moved around in the barrel. In the end, it is a big disappointment.The Tipfun Boresighter arrived with absolutely no instructions. I figured out that the negative side of the batteries went in first before noticing the faint stamping on the laser part showing the battery direction. Hint – if you can stack three batteries, negative side up, you can lower the laser end over the stack, tilt it and screw on the barrel end. When I first tried to drop the batteries in, they would often rotate and not end up in the correct orientation. Get used to loading the batteries since the only way to turn it off is to remove them.I'm hoping I didn't scratch or damage either barrel. I probably shouldn't have used as much force as I did trying to make this thing work. Perhaps it's okay for a .38spl but I can't use it for my 9s.

I've used boresights before, but not the kind where you just insert the tip. This one uses an insert into the end of the barrel as opposed to going in the chamber. Unfortunately, mine was inaccurate with the red dot moving just by rotating the Tipfun boresight while inserted. If it was properly calibrated, the dot would not change position.IMO, the one I have is improperly machined such that there is a very slight bend in the shaft, probably near the threaded part such that the red dot is unstable and basically almost worthless for sighting. I say "almost" because if it gets me on paper, then I can zero from there. We'll see if it even does that.Update: 10.04.23: I decided to fiddle around with this boresight a little simply because the other reviews were good and my experience was different. I retried it and it worked great the second time! I think I mistakenly put 4 batteries in the cylinder instead of 3 so the .22 insert rod wasn't fully aligned with the red dot tip. Holds rock solid now and I've updated my review to 5 stars.