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Posted: 12/3/2013 6:16:13 PM EDT
| I bought my first AR. I admit I know nothing about a rifle with more than a 4 shot magazine and a shift knob. I have observed the following (correct me if wrong): The MBUS rear sight appears to not have an elevation adjustment. It also appears to not have dual apertures. At least I have not figured it out yet. The manual talks about adjusting the elevation of the Front sight with the "sight plunger." Where is it? The manual doesn't say. I'm sorry for such green horn questions but the manual is a complete failure for the MP option rifle. Also, the AR came with the front hand grip uninstalled. I installed it today but it wobbles and rattles all over the place. I was disappointed that it did not fit better. I expected more from Colt. |
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Tip of a bullet, ball point pen, tooth pic, anything similar will work, you do not need an actual tool.The front sight is for a basic zero at a given range and is not typically adjusted after zeroing, unless you intend to re-zero at a different range. Rear sights with elevation is where any elevation changes are typically done after zeroing if you have one that will adjust. Some like the basic windage only rear sights such as is on yours as they set the elevation once at their desired sight in range and forget it. Seriously just use a tip of a bullet to press the detent down and rotate the sight as seen here.  Found this video with a quick Google search, reasonable explanation of front sight adjustment starting about 2:20 when I find a better video I will edit but this is a good start for you. |
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Quoted:
Tip of a bullet, ball point pen, tooth pic, anything similar will work, you do not need an actual tool. Truth, However the tool keeps you from scratching the bejeezus out of the top of the front sight post Go buy some Magpul handguards. they fit nice and tight and they are cheap |
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Many people just use a full metal jacketed bullet as a plunger depressor.
The front sight has an arrow and the word UP on it. If the rifle is shooting LOW you turn the sight in the direction of the arrow to raise the shot group. As above, the Magpul rear sight is windage adjustable only. It's intended to be an emergency back up sight for something like an electronic sight or scope. Ideally, you'll have some sort of sight mounted in such a way that the back up Magpul sight will be in register with the main sight. In other words, if you flip up the Magpul; it'll be looking right through the main sight. This is so once sighted in, both sights will be on target. To use the other Magpul peep aperture, you use a finger nail to push on the very top of the aperture to "peel" the sight apart so you can use the other aperture. |
| Ah ha! I see it now in the video. I will get AR out tomorrow when the grandkids are not here and check for the plunger in the video.and the dual aperture procedure.. I will look for the tool to avoid scratches but I can probably use a pair of needle nose with a cotton rag for protection. I have Aimpoint Pro installed as main sight but i would like the irons to be accurate and co-witnessed.. I think I will buy a quad rail foregrip and pitch the MPUL front handle. I will say one thing; this is the "Nastiest" firearm I ever owned. It is truly a SHTF weapon. As a Right Wing Nut, I think all stable families should be issued one. |
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Quoted:....................and the dual aperture procedure.. And hand guard play is normal for the type that mount via the normal method. It is not a Colt issue as much as inherrent to the design of the weapon issue. There are add on rails or the monolythic uppers that have no play but do not concern yourself with it. In addition there may be some play between the upper receiver and the lower receiver this is also somewhat normal. (some have less play than others) but it is also not an indicator of something wrong. |
| another thing. The AR seems to have some pretty thick and sticky stuff covering the bolt. should I soak the parts in solvent and re-clean with CLP before firing? I won't be firing this weapon until this winter in Florida. I have access to relatives huge ranch in central Florida to hunt hogs. I've been using my Savage 11/111 25-06 that I love, but hogs run in packs of up to 50.Really hard to get a second shot off as hard as they run.With this AR I think I can be a serial killer all winter. |
| Thanks to all who greatly helped me or at least pointed me in the right direction. I can hardly wait to fire my new Barbie. What I am not going to do is hang stuff off every rail just because the is still more room. My favorite is the flashlight so you can let the home invader know precisely where to shoot to make full body contact. Thanks to all.Merry Christmas or Happy Hanukkah. |
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Quoted:
I bought my first AR. I admit I know nothing about a rifle with more than a 4 shot magazine and a shift knob. I have observed the following (correct me if wrong): The MBUS rear sight appears to not have an elevation adjustment. It also appears to not have dual apertures. At least I have not figured it out yet. The manual talks about adjusting the elevation of the Front sight with the "sight plunger." Where is it? The manual doesn't say. I'm sorry for such green horn questions but the manual is a complete failure for the MP option rifle. Also, the AR came with the front hand grip uninstalled. I installed it today but it wobbles and rattles all over the place. I was disappointed that it did not fit better. I expected more from Colt. The grip should fit solidly (I've installed two of them). Stupid question, but did you use the 'nut' and bolt that came with the forward grip? It's very easy to overlook or misinstall the 'nut' and some people forget it all together as the moe grip fits snugly into the moe handguard (until you use it). |
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Quoted:
Truth, However the tool keeps you from scratching the bejeezus out of the top of the front sight post Go buy some Magpul handguards. they fit nice and tight and they are cheap Quoted:
Quoted:
Tip of a bullet, ball point pen, tooth pic, anything similar will work, you do not need an actual tool. Truth, However the tool keeps you from scratching the bejeezus out of the top of the front sight post Go buy some Magpul handguards. they fit nice and tight and they are cheap The op indicated he had the mp edition |
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Quoted:
another thing. The AR seems to have some pretty thick and sticky stuff covering the bolt. should I soak the parts in solvent and re-clean with CLP before firing? I won't be firing this weapon until this winter in Florida. I have access to relatives huge ranch in central Florida to hunt hogs. I've been using my Savage 11/111 25-06 that I love, but hogs run in packs of up to 50.Really hard to get a second shot off as hard as they run.With this AR I think I can be a serial killer all winter. Need coordinates of said ranch and dates for the ArfCom Pig Shoot and BBQ.. |
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If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Quoted:
Quoted:
My favorite is the flashlight so you can let the home invader know precisely where to shoot to make full body contact. If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Oh, I'm guilty of not knowing how to "fight with a light" or any other kind of fight really. If I had to, I would probably grab my 38 Chiefs Special and hope for the best. |
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Quoted:
If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Quoted:
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My favorite is the flashlight so you can let the home invader know precisely where to shoot to make full body contact. If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Quoted for truth! Every home defense gun needs a light. It's dark 8-12 hours a day giving the time of year. You don't want to go around flipping light switches on/off around your house if you think an intruder is in there. And to those who say; "Let them come to you...." I live in a house that's older than me, very nice, but quite old. It's creaky and sometimes makes loud noises on it's own. If I had to wait for, "Them to come to me", every time a loud noise happened I'd have 15-20 absolute sleepless nights over the last 5 years... If my light shines on you, your taking a dirt nap! |
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Quoted:
Oh, I'm guilty of not knowing how to "fight with a light" or any other kind of fight really. If I had to, I would probably grab my 38 Chiefs Special and hope for the best. Quoted:
Quoted:
Quoted:
My favorite is the flashlight so you can let the home invader know precisely where to shoot to make full body contact. If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Oh, I'm guilty of not knowing how to "fight with a light" or any other kind of fight really. If I had to, I would probably grab my 38 Chiefs Special and hope for the best. I'm sure you'd figure it out if the situation arises my friend. It's kind of like riding a bike. However, even with your .38, you need a light of some sorts. God forbid one of your grand kids are there and you mistake them for an intruder in the dark. And you don't have to point the weapon directly at anything to identify a target. The splash coming off the light is more than enough to make a positive ID... I have a 3 year old and every home defense weapon has a StreamLight TLR-1s attached to it. For $105 at Amazon.com, I don't know of a better bang for your buck weapon light... |
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Quoted:
Tip of a bullet, ball point pen, tooth pic, anything similar will work, you do not need an actual tool.The front sight is for a basic zero at a given range and is not typically adjusted after zeroing, unless you intend to re-zero at a different range. Rear sights with elevation is where any elevation changes are typically done after zeroing if you have one that will adjust. Some like the basic windage only rear sights such as is on yours as they set the elevation once at their desired sight in range and forget it. Seriously just use a tip of a bullet to press the detent down and rotate the sight as seen here.  http://youtu.be/6rNQDBKPi2E
Found this video with a quick Google search, reasonable explanation of front sight adjustment starting about 2:20 when I find a better video I will edit but this is a good start for you. http://youtu.be/j5QCGWYfHWk
Does anyone know where to buy the front sight tool shown in the first video? I've searched far and wide and can't find it. Thanks |
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Quoted:
I'm sure you'd figure it out if the situation arises my friend. It's kind of like riding a bike. However, even with your .38, you need a light of some sorts. God forbid one of your grand kids are there and you mistake them for an intruder in the dark. And you don't have to point the weapon directly at anything to identify a target. The splash coming off the light is more than enough to make a positive ID... I have a 3 year old and every home defense weapon has a StreamLight TLR-1s attached to it. For $105 at Amazon.com, I don't know of a better bang for your buck weapon light... Quoted:
Quoted:
Quoted:
Quoted:
My favorite is the flashlight so you can let the home invader know precisely where to shoot to make full body contact. If you believe that about flashlights, it merely confirms you have no idea how to fight with a light. Take a class. Oh, I'm guilty of not knowing how to "fight with a light" or any other kind of fight really. If I had to, I would probably grab my 38 Chiefs Special and hope for the best. I'm sure you'd figure it out if the situation arises my friend. It's kind of like riding a bike. However, even with your .38, you need a light of some sorts. God forbid one of your grand kids are there and you mistake them for an intruder in the dark. And you don't have to point the weapon directly at anything to identify a target. The splash coming off the light is more than enough to make a positive ID... I have a 3 year old and every home defense weapon has a StreamLight TLR-1s attached to it. For $105 at Amazon.com, I don't know of a better bang for your buck weapon light... If I hear something at night I usually go for 357 as well.. I can imagine you really freak out some grand kids by cruising around your house with an ar15 and flashlight!! |
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