I purchased this laser light for my AR 15. It arrived promptly and on time. It was easy to work and use. Put the batteries in and screw the cap on. It lights up and insert it into the chamber. Align your scope and your good to go. It is accurate. Once your finished sighting in your scope, remove the laser light and remove the batteries, and put it into the case that is provided. It works as advertised.

Received it from Ups and within minuets i had my ar15 sighted dead on. Works well !!

very good product.it works flawlessly,read the directions and you can not go wrong.

Item works as described and Overstocked delivered promptly and in new condition. I have this sighter for my .223 AR 15 and in .45 ACP for my handgun and CX4. Makes sighting easier with less wasted ammo and time at the range. You still have to fine tune it though. Great to get your shots in the ballpark! There is no on/off switch so you have to be swift when using it lest the batteries run out. I heard the batteries are expensive. One tip I found helpful, is to put a small piece of paper between the connector and the battery so the batteries can stay inside the device and not risk loosing them. Once again, Overstock comes through with a great product at a great price and free shipping.

On the positive side: -Easy operations, just install the batteries -Includes batteries and storage case -Works On the downside: -Batteries didn't last long -Laser faded quickly with battery life -Failed after only sighting in one rifle

After ordering, I recieved it quickly. Worked as stated. ONCE AGAIN YOU DID A GREAT JOB.!!!!!!!

This is the first time I order from Overstock and I'm very satisfied with the service. The merchandise (Sightmark .223 laser bore sight) fit perfectly into my AR15 and worked as advertised. Glad I got it.

This is a great tool to help you sight in without wasting expensive ammo. My son and I took it out into the back yard and put it in the bore and focused it on a tree at about 40 yards. We then adjusted our up/down & left/right sights accordingly. It saved alot of valuable shots. One thing I didn't like is you have to take the batteries in and out every time you use it. Would have liked an on/off switch. But in a way I guess it may be better that you don't leave them in, forget and have them age and leak. Would recommend to all.

Purchased this to site in a few of my .223 rifles which have new scopes. It only took a few minutes for each and bamm! I was spot on. An in the chamber bore site is the only way to go.