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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! 🤘

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.

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.

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

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. 🙂

I’m so glad I went to KZfaq!! 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

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 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.

Follow the grouping. If you're hitting High move the front sight up if your hitting low move the front sight down

This was super helpful, I was losing my mind trying to get the front sight on. Never occurred to me to just hammer it on

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

Thank you so much! This was very instructive. This is a new platform for me and the Magpul back up sights fit very tightly. Good thing I have that great little gunsmithing hammer with the nylon and rubber heads.

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

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!

Great video on install and adjustment/zeroing instructions, I knew what you meant

I see you made this video about 8 months ago and had very tight sights. I just installed about my 10th set of Magpul sights and they were extremely tight to mount on the rail. I never had this issue before either. At first I thought the sights or the rail was defective. I guess it's a good thing because once it is mounted you almost don't need the screw, lol. Magpul must have tightened up their tolerances a little bit, it will probably be better in the long run. Magpul sights are solid sights for the money.

I have tried to install this for hours it has left me in tears before

Just terrific and very detailed. Thank you

Thank you so much . For lesson. Perfect tutorial.

Thanks for the clear instructions on installing these sights. On another note, I think you sound just like Judge Reinhold, 1 of the leading actors on 'Ruthless People' (1986 movie). You have an excellent voice. Have a great day:)

Perfect video man I appreciate it! I understand alot better about zeroing mine.. can't wait to get home

Thank you for the instructions. I will note this though: I used the mbus pro sights. The front sight post was labeled up. Following the "front sight is opposite" saying, I went "down." After two sets of three rounds I realized the sight had that already taken into account. Lol

Thanks just got these today . Can’t wait to try them out

I dot front site with bright orange nail polish. Small drop. I cut small peep of rear for center mass. If need more, get out sniper.... Thanks Bud for the help

Thank u this was a awesome. Showing us who never did this step by step. Not assuming we know What u skipped.

This was the info I was looking for thank you

youre the man, i had it installed by the end of the video, awesome information !!

The little wingnut tool it comes with to adjust the sights can be used in place of a flathead screwdriver to tighten the sights on the picatinny rail. You can tell since there's a little section of it that's thinner that fits just right in it.

Your rear peep sight has two settings. The smaller peep or hole is your daylight aperture. The larger peep or hole is your night time aperture.

Mine fit tight like that, too. The screws can be installed using the edge of the front sight tool to tighten.

I installed these on my rifle before watching this and I am so relieved to see I put them both on facing the right direction 😂

Great video. Was nervous to tap it w hammer but had to

The stuff on the end of the screw is called "microencapsulation" .. it's basically dry powdered loctite/thread locker.. in automotive they say so replace these screws every time as if the stuff is one time use... Idk you could surely just put a drop on if you're worried about it coming loose

I ran into the same issue when installing mine on my handguard (Aim Sports Wraith). I ended up using the rubber mallet that came with my roll punch kit to tap it on.

Looks like i bought the same stuff you did. This was informative.👍

The front sight tool is nifty and all... But we were taught to use the tip of a round to depress the detent to turn it.

I installed my front sight backwards so I don't have to see the ugly backside of it and it works just great, just in case anyone else didn't like seeing the ugly backside of the sight. Highly suggested

Thxs for sharing. It helped

Thanks for sharing!

A complete upper from a major manufacturer came with a Magpul rear sight. It's an unadulterated JUNK POS. I installed it, played with its chintzy mechanism a couple times, promptly ripped it off, smashed it with a ballpeen hammer to prevent any reuse by anyone, and pitched it into the trash bin. It had no repeatability whatsoever when flipped up, and its flimsy construction would obviously soon break off under field use. There is no comparison between this rubbish and the KAC made for the USMC, or the (less expensive) Troy Industries, also made for U.S. Government procurement. As to sight adjustment, the video does well in describing how to which way to move a front post and rear aperture to zero a rifle with iron sights.

The "coating" on the screw is a lock--tite jel, just makes it a cleaner process.

My magpul sights are tight on the rails also. I also went to adjust the rear sight and the knob popped off and the small indent bearing went flying! The roll pin was missing, made a new one for it. Ended up not using them because the rear sight interfered with my 1x6 scope. The riser on my scope is perfect for co-witnessing flip ups but can't get it far enough back for eye box on scope.

Easiest way to think about it is which direction does the round need to go. Shot is high you adjust down, shot is right you bring it left. Same for scopes and dots.

I just built a PSA, mine were tight as well.

Mine were tight , on an Aero Precision AR9 build. I expect to use this build at less than 50 yards. I like these sites and chuckled at the packaging that stated they were made for 5.56 . I am using them for a 9mm .

I got these for my Ruger PC carbine and unfortunately the chassis beneath the back rail is too shallow for the “flip-up” mechanism to work. The leaver hits the chassis. It’s too bad because I love these sights.

I think you said it backwards. If you raise the front post, you will lower the point of impact. If you lower the front post, you will raise the point of impact. In your example, you were shooting high. Therefore, you would need to raise the front post. The way I understood you to say it was backwards.

is it normal to have the backsight adjusted all the way to the left in order for the round to go where you want it to go when you line the sights up??

Is it possible to use a lazer to zero in then go to range to make minor adjustments?

Happy i found this. Mine came with an instruction QR codes that lead to nothing. I was like wtf is this key for. Lol.

The front sight picture you describe is commonly called " pumpkin on a fence post".

Thank you!!

I just found this video after I cut my fingers on the rail trying to install the rear sight. It’s definitely a tight fit. 😂

The problem with these split rail sights is that the rail is in two pieces! Micro differences between the front and rear rails and sights! Plus, they are composite, giving a little! I've noticed my mono rail 22lr and 12 ga have very tight shot groups! On to something? No split rail, plus they are Alum., all metal. Mabey take down pins for split rail ar's need a tighter tolerance? Bandaid? Thread tape? Scotch Tape? I would love to figure out my S&W 15-22 accuracy problem, Any Ideas? MBUS worked great for first 100 rounds or so, then couldn't hit anything! Mabey loose barrel? Any comments will be greatly appreciated.

The handle on the adjustment tool is meant for tightening the screw.

I use the same Magpul as BUIS with an LPVO w/ QD mounts. Thanks.

The adjustment is to move the group to where you aiming at. It's simpler to think that way

They are easier to install if you install them when they are already flipped up and in the ready position

Thank you.

I have not tried it at the range yet, using a magnetic laser bore sighting tool I wound up with my rear sight almost all the way left and my front sight almost all the way down. I'm wondering, could my set of sights be defective, or are these extreme settings sometimes required with MBUS sights? I don't recall ever needing such extreme adjustments on an M16.

A small piece of tape (I use 3m painters blue) over the nut will hold it in place.

Hey I’m just watching gun vids I know how to do this but your upper is like mine do you know of any rail covers that fit the top of that up it’s not exactly M lok on the top.

My front sight is good with night but it seems like it’s more to the left I need more right .. help

I used this sight at 100 yards on keltec cmr-30 . Wow is it accurate. No need for a scope.

Looks like I've installed the front sight post backwards on 2 rifles in a row 😂😂😂😂 woooow. Thanks brother.

How that Ballistol works for you?

Is this the same guy that does the 1st amendment audits!? Sounds just like his voice. Love that guy

With boardsides eliminate how we're going to the range?

My front sight doesn’t sit as flat as yours does.

Mine was so tight, at one point I wasn’t sure I bought the right one.

You are tapping the optics towards the front of the rail. Shouldn’t you tap them towards the back so that way recoil will only reinforce their position? That’s what I’ve read on optics anyway so I would imagine it would be the same for iron sights.

On one of mine the sights flip opposite directions, they give me the most distance on that particular weapon, I don't see a problem

My sight was also too tight to fit. Hit the inside with a little triangle file and it'll slide on smooth as silk

So ive installed my rear sight with no problem and i got the front one on with no problem but when i try to pop up my front sight it wont pop up. When i take it off the rail it pops up. What do i do?

If i get my sights zeroed and then I move the sight back on the rail towards the charging handle will I loose zero?

Is it odd if I have to have the rear aperture aligned far to the left to be zero?

How much does it change the POI for each click of the front post?

Just a heads up, the front sight zero tool has a groove on the top to tighten the screw on the sights. No need for a screw driver. Also, install the front sight by sliding it TOWARDS the barrel tip. Not from the tip back.

I’ve put mine at the first rear notch above the charging handle. I haven’t test it out yet obviously with the ammo drought. But if anyone could answer this is this a secure spot to leave the rear sight.

Best way to explain front sights is to move the sight to where the bullets are hitting

will the front sight work with the mbus pro rear sight?

Please start out by identifying that the area at the end of the barrel is the Front Sight location. The Rear Sight is the area closest to your face.

Since they are plastic, couldn’t the front sight warp from the heat of the barrel?

Just got my magpul sights in...I can't fit them over multiple rails. The rear sight stops before it even reaches the first rail slot, let alone the second slot. It seems as if I have to take a dremel tool to widen the seating portion of the sights. This is ridiculous. Fyi...both are Midwest Industries rails. I do not have a teflon hammer nor a hair dryer to warm it up.

If I raise the front of my barrel the round impacts lower? Something doesn’t sound right.

Your a regular Picasso at drawing. J/k. Good video

If you raise the post your POI will drop.

I guess I had all mine backwards the entire time, even though i hit target with it backwards.

Are you sure you mounted them correctly? I mounted mine with the Push Button in front not the back.

Use the FORS rule: Front Opposite Rear Same.

My sights were incredibly tight as well.

Would these sights fit on a AR 22?