Universal GREEN LASER Boresighter Bore Sight Sighter Boresightfit .17-.50 caliber,7.62x39?,x54,12g,20g,.3?0-30,.223 5.56,.30-06/.25-06/.270 308 243 .45, .50 BMG

I’m still fairly new to mounting optics and this made the process a lot easier for me. Instructions were simple and everything worked immediately. Definitely beginner friendly.

I’ve mounted optics for years and usually just did rough manual boresighting before heading to the range. After trying this tool, I honestly wish I had started using one much earlier. The laser alignment was consistent and got my scope extremely close before I even fired the first shot. That saved both time and ammunition during final zeroing. The fit also felt secure without excessive movement inside the chamber. Another thing I appreciated was how compact and portable it is. I leave it in my range bag now because it barely takes up any room. For anyone who changes optics regularly, this is a very worthwhile accessory.

The laser was bright enough to see clearly indoors and setup only took a few minutes. For the price, this thing works great.

Used this boresighter for a new red dot install and it got me surprisingly close right away. Saved a lot of guessing at the range. Very useful tool to keep around.

No complicated setup, no issues, just worked. Easy to use and helped reduce the amount of ammo needed for zeroing.

I switch optics between rifles fairly often, so I finally decided to buy a dedicated boresighter instead of wasting time and ammo every range trip. This thing has honestly made the process much easier. The laser has remained consistent during repeated use and the unit seats securely without feeling loose. I recently used it while mounting both a red dot and an LPVO and both setups ended up extremely close before final adjustments. What impressed me most was the convenience. Instead of spending half a range session chasing impacts around the target, I can now focus on fine tuning almost immediately. Very worthwhile tool for anyone working with optics regularly.

The boresighter itself worked well and helped get me close to zero fast, but the included batteries didn’t last very long. After replacing them, the laser brightness improved and everything worked fine.

I used to try sighting optics manually by looking down the barrel, but this tool made the process way easier and more precise.

Laser was easy to see indoors during setup and helped make the zeroing process much faster.

I honestly didn’t expect this much performance from a budget boresighter, but after using it several times I’ve been pleasantly surprised. The laser alignment was consistent and helped get my optic very close before firing the first round. The fit was solid without excessive wobble and setup only took a couple of minutes. At the range, I only needed minor adjustments afterward which saved a noticeable amount of ammunition. Another thing I liked was how portable it is. It barely takes up any room, so now I just leave it in my rifle case permanently. For anyone who installs optics regularly, this is a very practical little tool.

Compact enough to keep in my range bag all the time. I’ve already used it on multiple rifles and it’s been consistent every time.

Used this boresighter while mounting a new optic and it got me on paper almost immediately. Bright laser and very easy to use.

Simple product that does what it’s supposed to do. Easy setup, bright laser, and solid performance so far.

I used to try manually boresighting optics by looking down the barrel, but after trying this tool I honestly don’t want to go back. This made the process significantly faster and more precise. The laser was bright enough to see clearly indoors and stable during adjustments. Once I got to the range, my optic was already very close to zero which meant I spent far less time chasing impacts around the target. Another thing I liked was how simple the whole process was. No complicated setup or confusing instructions. It’s one of those inexpensive tools that ends up being genuinely useful every time you install a new optic.

Compact enough to leave in my range bag permanently. I’ve already used it on multiple rifles and it’s worked consistently every time. Good value purchase.

Used this before heading to the range and it got my optic surprisingly close to zero. Saved a lot of time and ammo. Very happy with it overall.

Simple product that works exactly as intended. Bright laser, easy setup, and helped shorten the sighting process significantly. Would recommend for anyone installing new optics.

I switch optics fairly often between training rifles and range setups, so I finally decided to buy a dedicated boresighter instead of eyeballing everything manually. After several uses, I honestly wish I had bought one sooner. This tool consistently got me close enough that final zero adjustments only took a few shots. The laser appeared stable and repeatable during multiple checks, which is something I’ve had issues with on cheaper units before.

The boresighter itself worked fine and got me close to zero quickly, but the included batteries drained faster than expected. After replacing them, everything worked normally and the laser brightness improved noticeably.

I’m still fairly new to mounting optics myself and this made the process much less intimidating. Simple instructions and easy setup.

Used this while mounting a new red dot on my AR and it worked perfectly. Laser was easy to see indoors and helped me get centered quickly. No complaints so far.

I bought this expecting something basic just to get on paper faster, but it honestly performed better than expected. The laser alignment was consistent and got my optic extremely close before I even fired the first round. The unit itself feels reasonably solid and doesn’t feel cheaply made. Some inexpensive boresighters I’ve tried in the past had loose fitting issues, but this one seated properly and stayed stable during adjustments. What impressed me most was the time it saved. Instead of spending half a range session chasing impacts around the target, I was able to fine tune almost immediately. For anyone mounting optics regularly, this is a very worthwhile tool to keep around.

Small enough to keep permanently in my rifle bag. I’ve already used it on two builds and it made the sight-in process much easier. Good value for the money.

This boresighter worked right out of the package and got my optic very close to zero quickly. Bright laser and simple setup.

I’ve used a few different boresighters over the years and some were very inconsistent, especially the cheaper ones. This one actually worked better than expected right out of the package. The fit was solid and the laser aligned closely enough that I only needed a few small adjustments once I got to the range. Instead of wasting an entire box of ammo trying to get on target, I was already very close after the first few shots. Another thing I appreciated was how easy it was to use. No complicated instructions or setup process. Just insert it, make adjustments, and you’re ready to fine tune. Definitely a useful tool for anyone mounting new optics regularly.

Used this on two different rifles already and it made the initial sight-in process much faster. Bright enough to see indoors and during cloudy outdoor conditions. For the price, no complaints here.

Picked this up to save ammo while sighting in a new setup and it worked surprisingly well. Got me on paper almost immediately at the range. Simple to use and definitely worth having in the range bag.

I have used a bullet type laser in the past but this one beats them all

I'm glad I bought one but not sure I would have bought it if I had actually used one. Great and cleaver idea that so far appears to be quite easy to use and reasonably accurate. But will NOT WORK on firearm that have a muzzle device (flash hider, etc.)