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Tons of AR questions. Please Help

Discussion in 'Black Rifle Forum' started by JTLIII, Feb 18, 2010.



    Mar 13, 2007
    So, Here's my current situation. I have built 2 16" barrel ARs and I don't need both. I want to only keep one, and really make that a nice one(better quality accessories) and sell the other.

    I plan to use this rifle for casual shooting/plinking, 3gun matches in the future, and HD/SHTF.

    The specs are:

    #1 Model 1 sales, heavy barrel 16" all flat top, UTG quad rail, YHM flip up front site, GG&G flip up rear site. Essential arms lower, standard CAR buttstock

    #2 DSA M4 style upper, UTG extended quad rail (the kind with cut out for site post), Flip up rear site, Magpul ACS stock. Essential arms lower

    1. Which upper would be better in the long run, the M4 style or the all flattop heavy barrel?
    2. Which style quad rail should i stick with, standard 7" or extended.
    3. If I were to switch stocks, what is better quality the VLtor Emod stock, or the Magpul ACS?
    4. What is the advantage of free float over 2 piece?
    5. Are there any clear advantages to having different flash hiders? THey both have the standard A2, would the phantom, or the vortex be better? and why?
    6. One gun has a M16 bolt carrier, the other has AR15. They are both legal, so would one be better to keep than the other?

    I am looking to get this quad rail if I keep the DSA upper


    or potentially a full length 12 or 13" rail and make the flatop more of dissapator.

    I just need suggestions/opinions...thanks...
    Last edited: Feb 18, 2010
  2. mvician

    mvician Lifetime Member

    Jun 8, 2007
    NW Indiana
    :wavey: My answers in RED These are my opinions, and those of others may vary :cool:



    Mar 13, 2007
  4. kabob983

    kabob983 "Mostly" Dead

    Jun 27, 2005
    Birmingham, AL
    Pretty much exactly what I'd say.

    Who makes the upper on #1 BTW (or, more importantly, who makes the barrel?)


    Mar 13, 2007
    The barrel is from the Model 1 kit. No idea who made it. I think I'm just gonna keep the DSA upper. Go ahead with the DD rail, keep my ACS stock, and try out the AAC blackout.

    Thanks a lot for the help guys!

    More opinions still welcome!


    Mar 13, 2007
  7. M249SAW

    M249SAW Rescue Jockey

    Jul 24, 2004
    Tampa, FL
    1. I agree with the upper with the lighter AP4 (M4) contour.

    2. As far as handguards I use the Magpul MOE polymer handguards. Cant see my self using much if any rail space, if I need to I can attach a short section onto the handguard. Otherwise its nice and light.

    3. Either are good, personally I'm a Magpul whore :whistling:

    4. As said above better long range accuracy with free float. In a carbine I dont think its as much as an issue as say an SPR.

    5. Decide if you want a flash hider or a compensator or both. I have the Vltor VC-1 on the rifle below and it does well at both

    6. M16 bolt carrier, the gas key is chrome lined (should be anyways) and if the Shiz ever does hit the fan you can have a spare bolt carrier when you find abandoned USGI M4s.

    Only other question I have is what are the twist rates of the 2 barrels? 1:7 will stablize your heavier rounds (ie:SS109s) better (again if its a SHTF rifle it may be used for hunting).

  8. I think ssfeldjager was just giving you a link to the
    ar15 forum where you might find more information
    regarding your question.
    It is a forum that deals primarily with ar type rifles
    and there is some good info. there also.
    I visit there myself. Good Luck on your build.
  9. djegators


    Mar 1, 2009
    Tampa, FL
    Have you considered selling both, and starting over? You have a lot more knowledge and experience, and with some research, can build very nice AR from the ground up, rather than upgrading what you already have. Just a thought.
  10. JTLIII


    Mar 13, 2007
    My fiance will **** a brick if I sell both and buy another...they all look the same to her. So selling both isn't really an option. Plus, I just recently bought the DSA upper and I quite like it a lot.

    I think the twist rates are both 1:9

    I don't ever intend to use it as a hunting rifle, I have a R700 and M1A for that if needed.
  11. ssfeldjager


    Jun 6, 2005
    The Glock Talk web site is primarily about Glock pistols; hence the name. It has various embedded forums dealing with other interests, as well.

    Likewise, the web site is primarily about AR15's and related weaponry, with embedded forums dealing with other issues.

    The link was provided as friendly advice. Take it or leave it. Makes no difference to me. :upeyes:
  12. faawrenchbndr

    faawrenchbndr DirtyThirty fan CLM

    Nov 24, 2005
    ssfeldjager provided the link in a helpful nature.
    There is Tons of outstanding info there!