Horse Shoe from United States, LA Public Profile

This is the most practical bore sight tool.
It works fine as long as you have a properly crowned and true bore barrel.
The magnet is very strong and will stay on the barrel, then is a matter of pointing the light to a wall at a distance of 20 to 30 feet, and adjusting the scope or sights to match the light point of impact.
It will get the shots on a 18" circle at 25 yards.
For rifles with flash devices, it is best to remove the flash device and then attach the laser directly to the bore.

I got it because the price was a bargain, and it matched my project AR lower custom color scheme.
It is solid, longer than a standard grip (aggressive?), and heavy ... however, not much more comfortable than the standard throw away AR grip that comes with just about any lower kit (adequate for military standard issue).
I love the looks and makes my lower built a "one-off-a-kind".
No regrets.

First pistol scope I have bought (and I have several) that came bore-sighted right out of the box.
I installed it on a Ruger Mark III 22LR, used high mount see-through bases so as to allow the use of iron sights.
Bore sighted the scope using a laser device ... to my surprise, there was absolutely no need to adjust the turrets (take it as a good sign).
Scope size, weight, eye relief and clarity are good to me, but I don't have a high-end sample to compare with.
I haven't tried this set-up at the range, that is why I gave it 4 stars, but I have high expectations that it will work as intended.
The scope is reasonably priced and should perform adequately when compared to some real-proud ridiculously priced manufacturers.

I loved this product and I own two of them. I use it to bore sight every AR build that I assemble, and most pistols or rifles without muzzle devices.
My Instructions:
1) Bore sight before installing the muzzle device otherwise the magnet will not lay square to the bore
2) Bore sight at a distance of about 10 to 15 yards that will get "on paper 81/2 x 11 inch" at 25 yards. Sighting the gun after that is up to the shooter.
3) It is critical for the magnet sit flat against the barrel crown ... if the muzzle device is installed and is hard to remove, then do the following - only applies to AR rifles:
A) Separate the UPPER from the LOWER assemblies - If you need my instructions on how to do that please proceed no further.
B) Remove the Bolt Carrier Group (BCG) from the upper, keep the bolt extended forward (should be as it was extracted from the receiver)
C) Attach the laser magnet to the bolt face and center it with your fingers (they are about the same diameter size)
D) Turn the laser ON. Carefully re-insert the BCG into the receiver, but do not press or push hard, guide the BCG in and look for the laser to perfectly shine on any near wall surface. NOTE: The BCG will not go totally in as it has the laser attached to the head.
E) Move the BCG in & out until a perfect laser dot shines through the barrel against a wall.
F) If I have to explain how to sight your iron sight or scope .... proceed no further.
g) And this is how to BORE SIGHT a rifle.

Used this upper receiver to build a 450 Bushmaster with a 10.5" barrel.
I had it in my "just in case" parts box as it was very inexpensive.
I used it because the 450 Bushmaster cartridge requires an oversize ejection port opening, and that was easy to do with a Dremel and file because of the polymer construction. It worked so well that the modification is not noticeable.
My build worked perfectly, and the upper receiver is holding well after about 60 rounds (450BM is expensive at about $1.50 to $2.00 a round)
The only problem is the brutal recoil as the gun is so light, but is fun to watch others shoot it.
There is nothing wrong with this upper, however I only use them (I bought several) to build light experimental guns.

The package is a good value
The Scope, Rings, Sling & Recoil Pad are excellent, and they make this purchase worth it.
The Scope Mount is a good concept that needs improvement as it does not hold zero.
Don't waste your time and ammunition using this mount.

I am satisfied with the rest of the package, so I purchased a different mount (better design), next is installing the scope and head to the range.