Couple questions on my new toy

Discussion in 'AR-15 Discussion' started by dborns, Sep 7, 2011.

  1. dborns

    dborns New Member

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    So it took me a little longer than the 12 minute Youtube video I watched, but I finally got my AR put together. Here are some pics:
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    Please keep in mind this is my first build, and just a basic AR. I already have some ideas of what I want to change.

    For anyone thinking about doing this, its well worth it! I didn't build the upper, just the lower, and it was real easy. All I used was a short two part video off of youtube and printed instructions from AR15.com. I did launch two springs, but heard where they hit and was able to find them. I got to the Takedown pin and couldn't find the detent pin in my pile of parts. I was cussing the person that put the packet together when I noticed something in the end of the buffer retainer. It was the pin and it had some oil in it that kept the pin from falling out. All the parts where there, and went in pretty easy. The only "special" tools I used were a curved set of needle nose pliers, a small tack hammer, and a set of punches. I didn't have these, so $18 at HF bought all the tools I need.

    One question I do have- Is it normal that when I pull the charging handle back, I have to push it back into place in the receiver? For some reason I was thinking they had a spring and would return back into the upper. Also after, pushing it back in, I have to hit the bolt catch to fire.

    I've not fired this thing yet, so keep that in mind before you think thats a dumb question. I'm assuming it will work differently when there it is loaded.
    Thanks!
     
  2. FCross7

    FCross7 New Member

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    If you have a magazine in the rifle, but no rounds in the magazine, then yes, you have to push the charging hand back in, and hit the bolt catch to release the bolt. If you have a loaded mag or no mag at all, then just pull the charging handle back and let her rip. The bolt will move forward into batter, pulling the charging hand with it.

    -Fred
     

  3. dborns

    dborns New Member

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    Ok, thanks. I figured things would work a little different when I had ammo in it. I plan on shooting it sunday so I need to do some research on how to site the red dot and what kind of ammo to practice with.
    I also started looking at what I need to do for oiling parts; I bought some stuff called "Rem Oil" and used a small amount to put it together but I haven't done anything to the bolt or anything else. I've only used household oil on the barrel of my XD, whats the recommended grease or oil?
    Thanks!
     
  4. Gatoragn

    Gatoragn Active Member

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    Here you go:

    http://www.firearmstalk.com/forums/f20/how-lube-your-ar-15-a-30881/?highlight=lube
     
  5. dborns

    dborns New Member

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    Thanks for the link. I'll work on oiling it up tomorrow.
     
  6. hockeyjr1

    hockeyjr1 New Member

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    Good job on the first build..

    On my rock river when you pull back the charging handle with no mag inside the gun it will let the bolt go forward and close the breach.. If there is an empty mag in it then yes the bolt will stay open and you push the charging handle forward till it clicks.. In order to lock it open without a nag you have to pull back the handle and push in the bolt release pin to keep it open.. I don't see this being an oil issue at all...
     
  7. dborns

    dborns New Member

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    I wasn't thinking the charging handle issue was an oil problem, I just wanted to do get some info on where I needed to oil it for the maintenance.
    Thank you!
     
  8. hockeyjr1

    hockeyjr1 New Member

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    My bad I failed to read all the posts lol
     
  9. dborns

    dborns New Member

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    I was at WM today, and grabbed a box of Federal shells to practice with this weekend. I also looked for some grease to use to lubricate the bolt, and other places that I read about when I googled the issue. I didn't find any grease, but I bought some "Rem Oil", which is a spray but says it "cleans, lubricates, and protects". Is this something I can use to spray down the lube points?
     
  10. nfafan

    nfafan Member

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    Sounds like it fits the bill of a "C-L-P" to me. Some folks have favorites, I just use whatever I have handy, MiliTec or whatever its called, Triflow, full-synth 5W30, some other stuff in a squeeze bottle that I can't recall, and some black grease - Lubriplate??. Whatever. Keep it lubed and clean.

    Speaking of which; the "Tula" steel-cased .223 in Wallyworld - very dirty ammo. It'll make your chamber area look like you beat a charcoal briquette into place with a hammer. That and the cases are supposedly "polymer coated" - I think it feels "dry" to the touch as opposed to brass cased ammo.
    Can't hurt to try a box to see for yourself.
     
  11. CHLChris

    CHLChris New Member

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    Rem Oil is just oil. It isn't really a cleaning agent. I like to use Rem Oil just for the outer parts to make it all look purdy (spray and wipe). For the lube points on the functioning moving parts (check the stickie in the AR-15 sub-forum for how to lube your AR), I prefer Mobil 1 synthetic motor oil.

    I think you got the answer above, but let me touch on your first question. The bolt locks back when you have an empty mag inserted, just like a slide locks open on a semi-auto pistol with an empty mag. Then the charging handle just slides back in by pushing it. The only spring in that part of the system is the recoil spring for the bolt.
     
  12. NOVA

    NOVA New Member

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    I'm probably wrong, but I'm just saying, the way your setup looks in the pics, do you suppose you might need to raise your scope up about 3/8"? Looks like it would co-witness with the front iron site that way?
     
  13. mjkeat

    mjkeat New Member

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    I think you're correct. Good eye, I never even noticed. It looks like the dot will be halfway up the FSP.
     
  14. NOVA

    NOVA New Member

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    Several different sources for risers, here is one:
    Search Results : YHM, Yankee Hill Machine Co., Inc. | Makers of High Quality Firearms, Accessories & Sound Suppressors, Makers of High Quality Firearms, Accessories & Sound Suppressors

    YHM makes back up iron sites also, aka BUIS.

    But make sure you check out other sources as well; this is a common thing for flat top ARs. Enjoy your new toy and make sure to give us a range report.


    BTW, during your research if you run across the 25 meter military method for setting zero, remember this actually works out to about 84 feet target distance.
     
  15. dborns

    dborns New Member

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    Thanks for the info and the advice on the scope. I've never done this before, and need all the help I can get. I was also told that my castle nut on the butt is on backwards.

    I'm still learning how to set up the scope and will take a look at how to raise it if it does need it.

    Also, I keep reading about how bad "Tula" ammo is, but I bought Federal brand; is that Tula? I'm ok with needing to clean it after shooting so I can get familiar with that, but I don't want to do any damage.

    Thanks
     
  16. mjkeat

    mjkeat New Member

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    Some guys like to put the nut on backward. If it works run w/ it.

    I'm not sure what type of base that optic has but ADM makes a good mount.

    Tula is not Federal. Most of the negativity you hear on Tula is from guys who's rifles are out of spec or are just regurgitating what they've read on the internet. I use Tula when not at the indoor range or shooting a comp. I have never had a single problem w/ Tula.
     
  17. trip286

    trip286 New Member

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    Congrats and have fun at the range, But I think you should play with it a bit. thats right I said play with a gun, put all your ammo in a safe place, preferably in another room, double and triple check to make sure the rifle is clear (many accidents happen with an unloaded weapon) and just play with it. for instance, what happens when I do this? or this? so on and so forth. At Parris Island recruits are put through close order drill (parade ground routines) to get them accustomed to "willful immediate obedience to orders" and to get them used to handling their handy dandy new rifle. It's been almost 10 years ago but I seem to remember handling the rifle for about 2 months before even firing a shot. I only say this because you don't seem to know much about it and that's fine, because you obviously WANT to learn and it's a pretty easy weapon to learn. you already did the hardest thing in building it and you saw how easy that was. My grandad said to me "you should get to know her before you start with the fireworks"
     
  18. dborns

    dborns New Member

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    Trip, your right, and I actually was thinking about leaving it at home and just going and working with my 9mm and .380. I haven't shot for about a year now, so I need to get reacquainted with them. I want to be more familiar with it before I load it with live ammo. I picked up some Mobil oil and wanted to go through and lube it up today, and play with it a little more.

    As far as the sight, if its not adjustable up and down, I need to get some sort of riser for it? I've seen some AR's with an optical sight and flip sights on them. Is that for redundancy if your optical sight isn't working, or just personal preference?