Install and Zero Magpul MBUS sights

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I think you flipped the description for adjusting the sights, if you raise the front post, your shots should go down, and if you lower it the shots should go up… you said it right a couple times but in your “Pencil” demo, you said it backwards

yes. backwards. raising front post will send barrel down when lining sights up. I alway encourage people to look at it in the extreme . if you added 3 inches of post hight the barrel would point at the dirt when aligning sights. .

FORS…..front opposite, rear same. A good crutch to remember sight adjustment.

Thank you for this vid. I bought the same sights, thought they were borked, but after watching this and reading comments, I was able to install after adding some rem oil to the sights and my rail. You all rock! 🤘

Just ordered my Magpul sights for my Saint Victor AR15. I’m hoping I can install & get them sighted in correctly all by myself. Thank you for the tutorial. 🙂

Thanks for this video! The info on sighting it in makes perfect sense!

Excellent video thank you very much for posting. I'm an amateur and I really appreciate these videos. So thank you again for posting, very helpful for me.

I have a very long central hallway -- about 25 meters -- and use it to set an initial zero with newly installed sights/optics for with an LED boresight. Saves some time fussing around with ammo on a range. No LED boresight is perfect, but it gets you close enough to finish zeroing quickly on a 25 meter range. With an AR-15, you only need to work with the upper when bore sighting it. I recommend temporarily removing the extractor from the bolt when using a boresight and using the bolt with BCG to hold the boresight in place in the chamber. Removing the extractor while doing it prevents damage the boresight case rim which is typically soft metal.

I love this sight it’s the best one I’ve ever seen. I wouldn’t change anything about it.

Job well done! Great tips, illustration, and explanations!

The bigger/smaller aperture hole is for night and day shooting. Smaller hole, smaller pupil for days. Larger hole, larger pupil for night shooting.

Sight radius was the word you were looking for when talking bout the distance between the sights. Longer sight radius helps for making shots further away and still functions for close up, shorter radius helps for getting sight picture faster, pretty sure you knew that already though just describing for anyone curious.

Finally someone who titles a video install of the sights and actually shows the actual process of installing it! Bizarre how many people title their videos about the sights and adding them to a rifle but all they do is yack and dont even show the actual process clearly or at all. Thank you!

I just bought a pair of the MBUS sights, and all your comments were very helpful, especially about the tightness in putting them on the rail. I used a few drops of CLP to ease them on, with a few taps of small hammer. The double rear sights were so tight, I couldn't separate them with a thumb nail but used a small screw driver; a nuisance. Thanks, too, for the sighting comments.

I’m so glad I went to YouTube!! I nearly hammered the thing onto the rail top-down... sliding it is the trick to get it on. I think I would’ve broke something

Thank you for the video…helped out on my KSG.

Just terrific and very detailed. Thank you

The thumb grasp part of your front sight tool is the flat head needed to tighten or loosen your screws. Thanks for the video.

Read the instructions closely and followed your video which was emensly helpful. Had to tap lightly with a rubber mallet front and rear sights. Thank you!