CVLIFE 12 gauge bore sight laser

This works great. Good price, battery life is great, the laser is bright and easy to see. It fits perfectly in my 5.56 rifle. I couldn't ask for a better sight laser. It gets it as close as possible without putting rounds down range.

I needed a quick, easy, and budget option to set up iron sights on my first 5.56 AR and this CVLife Bore Sight Laser for 223(5.56) did the job very well. It's still essential to go to a range and dial in a zero at proper distance with live rounds, but this will get you on paper and save range time and ammo. The package includes a laser cartridge in 223(5.56) and six batteries. The cartridge takes 3 stacked batteries at once, and each set of 3 batteries lasts approximately one hour, so 2 hours of total use from included batteries. Function: Simply unscrew the endcap from the cartridge, insert 3 batteries, screw the endcap back on, and your laser is on. Once the laser is functioning, you simply place the cartridge into the receiver and *gently* ease the bolt forward until the cartridge is fully seated. You don't want the bolt slamming the laser cartridge into battery as you would a live round. Your chamber may not fully close, but that's ok as the cartridge simply needs to be held in place by the bolt and centered in the bore. You now have a red laser dot shining out of your barrel to which you can sync your iron sights or red dot. I only have about 20 feet of "targeting" distance in my home, so I was mainly concerned with getting the windage adjusted on my iron sights as accurate elevation would be near impossible at this close range. But now I can go to the range with a little more confidence in my initial accuracy and begin the real work. Verdict: Since you'll need to go to the range anyway, this laser cartridge offers an easy starting point for zeroing your sights at a budget price. Checking the alignment of sights between range visits is also a viable use option, but this functionality would be improved with the addition of an on/off switch as removing and installing the batteries for each use is a little cumbersome. At 20 feet the laser is very bright, but somewhat "fuzzy", so I'm unsure how accurate this would be over longer distances. Overall I am very happy with this as it does the job advertised, just be advised that it is only the beginning of the zeroing process. I expect to use this often.

Great laser

Works well, fits and was accurate. Can only sight in at about 35 yards tops though because the laser isn't very strong. But 2" low at 35 is 0 at 100. Worth the price

Planning to use the laser for a different purpose. Appreciate the compact size and ease of use.

Works very well

Bore sight worked as needed but shipping was very delayed and we got it after it was needed.

easy enough to use,,,,, Great product, and reasonably priced..... Danke: Junie

pour ajuster un télescope ou un red dot c'est vraiment précis et on sauve beaucoup de temps .

La précision est discutable.

This is a sharpshooter's best friend, earning a precise 4-star rating! This red laser bore sighter is versatile, compatible with calibers ranging from .223 and 5.56mm to .45 ACP and 12 Gauge. It’s an excellent tool for zeroing in your sights, saving you time and ammunition at the range. The laser is bright and easy to see, making adjustments straightforward and efficient. While the batteries can be a bit finicky to install, once set up, the device performs flawlessly. Whether you’re a seasoned marksman or a novice shooter, this bore sight laser helps you achieve pinpoint accuracy with ease. Dial in your sights and hit the mark every time!

Unit worked for all of one minute , when I put the batteries in, tried the other two sets that came with it , still no good , first set worked for about a minute, then the lase dulled right down to barely seeing it , do not buy this , it is garbage waste of money

The batteries lasted about 4 min. I think that’s why the send an extra set. It did the job in the end but it’s basically a single use item