Sightmark Pistol Boresight with Red Laser

I bought the 9mm version. I used it to adjust the iron and red dot sights on a 9mm carbine at 25 yards. The laser is only so bright, so you're either going to have to do this indoors, or outdoors on a less then bright sunny day. My unit came with 2 AG5 batteries. It will also accept 3 AG3 batteries. There is no on/off switch, when the batteries are in, the unit is on. I suggest you take them out when you're done. I had mine running for about 45 minutes on the batteries that it came with without noticing any change in the lasers brightness. After sighting in the iron sights at 25 yards, I experimented by rotating the boresight in the bore 90 degrees at a time to see if the laser was still aligned with my sights. I noticed no difference at that distance. My red dot is mounted on an American Defense quick detach mount. It was interesting and educational to use the laser to sight in the red dot. After my initial sighting in, I used my hand to flex and twist the sight on it's mount while it was attached to the rail of my gun. Guess what? It was clear I needed to tighten my mount! Then I used the laser to see just how well the red dot would hold zero when repeatedly removed and replaced on the weapon. Again, at 25 yards, I couldn't tell a difference. Finally, as I had done with the iron sights, I rotated the boresight 90 degrees in the bore, rechecking it each time against the red dot sight. Everything looked good! After all that, I switched to live ammo to check my efforts. I was off about half an inch high to the right. Fantastic results as far as I'm concerned! I'll sort out the rest at the range. I consider what I paid for this device money well spent for what I've used it for so far. Mine was a tad tight in the bore, even after cleaning the bore carefully and applying a VERY light coat of oil, I still had to use a pair of needle nose pliers to carefully extract it each time I removed it. I don't consider this an issue, just passing along my experience.EDIT: April 10, 2016 - Just a quick note on batteries, The second time I took this thing out to use it, the original AG5 batteries it came with were dead. The laser came on when I put them in but before I could use it, it sputtered out. I had bought a package of 10 Maxell AG3 batteries at the same time I ordered this boresight so I put in 3 of them. They lasted 10 minutes at best! I don't know exactly what to make of this information. Are two AG5s inherently better then three AG3s? Are the Maxells I bought just old or crappy? This much I can tell you, you gotta work quick to get anything done in 10 minutes...

I purchased the 45 ACP and 9MM boresights several years ago, which worked perfectly until this year when I started experiencing several issues. I reached out to customer support, hoping they could offer some advice. Instead, they informed me that their products are covered for a lifetime and recommended that I submit a Return Merchandise Authorization (RMA) to have the two units inspected.I sent the units in, and they returned them in like-new condition.The customer support was unbelievably great. If there were a sixth star, Sightmark would have earned it!

I love the idea but there does not seem t be any QA for this product. I received two sets and neither laser was aligned corrrectly. Unless the laser is aligned perfectly within its housing, the laser will not point straight. In my photos you can see how you must check your laser before a) using it to zero your weapon and b) before giving a review or getting rid of the packaging.1) Remove the barrel from the weapon and clamp it to a flat surface (I used a metal table leg.)2) Mark part of the back of the laser and consider that part “up” for now.3) Insert the boresight into the barrel wth the mark in the up position4) 5+ yards away mark with tape and a dot of ink where the laser hits a wall (this will be the reference point)5) return to the laser and carefully rotate the boresight (or remove and reinsert) so that the mark you made in step 2 is in the opposite position (down if it was up).6) walk back to the wall with the tape and see f the laser dot matches up woth the existing mark.7) Repeat steps 3-6 as many times as you want to validate the result. As long as the dot is in the same position when the mark on the back of the boresight is in a specific position you will know that the barrel has not moved during the process of you removing or spinning the boresight.The point to all of this is that for the boresight (any boresight) to work properly the red dot on the wall should always be in the same exact position no matter how the boresight is rotated in the chamber/barrel. If the red dot does move (in my case it moved about an inch for both boresights) it means any “zero” you were to get by using this thing will be off.. and not even close.If you don’t check your boresight like this and you are still getting OK groups after zeroing your sights there is a good chance that you are not shooting consistently or that you are cheating yourself out of even tighter groups.This test only takes a few minutes and is a great way to ensure your boresight actually works properly. Unfortunately for me, after two separate shipments, each product failed the test. :(Also, if there was some way to adjust the alignment of the laser and it’s housing I am confident that using my testing method we would be able to align the laser and have a great boresight. Unfortunately, it didn’t seem like the tiny screws actually did anything but maybe hold the laser inside of the housing