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12" versus 10.3"

Discussion in 'NFA & Class III Discussion' started by Hoov, Jun 26, 2013.

  1. Hoov

    Hoov Sharpshooter

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    I am going to do a SBR. The question is 12" or 10.3"? I have fondled both and am leaning towards the 12" gun, but would like some input from you who have done it. Please wait until the third post before hijacking....:laugh6:
     
  2. GlockCop

    GlockCop Sharpshooter

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    A friend of mine at work has had both on his personal M-16. He prefers the 12" for all around use. His reasons are it has a little less muzzle blast. YMMV.
     
  3. Fyrtwuck

    Fyrtwuck Sharpshooter

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    The first AR-15 SBR i built had a 10.5 barrel. I had some function problems that were traced to gas problems. After switching to a different weight buffer the problems went away. No experience with a 12" barrel.
     
  4. 338Shooter

    338Shooter Sharpshooter

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    12 is every bit as handy as 10.5 with more muzzle velocity and less muzzle blast. Also less recoil.
     
  5. CAR-AR-M16

    CAR-AR-M16 Sharpshooter

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    I have tried all kinds of different lengths on my M16, but I have a 12.5" now and love it.
     
  6. Hoov

    Hoov Sharpshooter

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    Forgot to mention this will run suppressed part of the time.
     
  7. DDriller

    DDriller Sharpshooter

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    I run 8.8" on my .338 Spectre shooting mostly subs. 12.5" on a 6.8 spc and a .30HRT. The baffle on your can will like the 12" a lot better than the 10.3"
     
  8. uncle money bags

    uncle money bags Sharpshooter

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    Listen to dustin, he knows alot about being handy.
     
  9. english kanigit

    english kanigit Sharpshooter

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    Research something called 'dwell time'. This is important in any self-loading firearm, very important in AR carbines and critical in AR SBRs (especially those less than 10.5").

    Ek
     
  10. Hump66

    Hump66 Sharpshooter

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    I liked my 11.5" that I had. I like my 10.3". If I did it again, I'd go 10.3" again. They do suck unsuppressed though, way to loud.
     

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