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Thread: epic fail at the range

  1. #1
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    epic fail at the range

    epic fail at the range. had to shoot my ar like it was a bolt action. bought a new forearm so i had to get a new gas block since the forearm wouldn't fit with the a2 sight. guy from rock river arms said " this one will work perfect". get home, put it on, guess what didn't work. i need an extended low pro gas block for the bushmaster carbine barrel. now i need to find one.

  2. #2
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    Sorry to here that.
    But what then is capital punishment but the most premeditated of murders, to which no criminal's deed, however calculated it may be, can be compared? - Albert Camus

  3. #3
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    cut the front site off your old gas block, then shave it down with a dremel to fit under the rail. Spray with black header paint or alumahide, and yer done.

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    Quote Originally Posted by Breadman View Post
    cut the front site off your old gas block, then shave it down with a dremel to fit under the rail. Spray with black header paint or alumahide, and yer done.
    Yup, that's the ticket right there.
    "Democracy is two wolves and a lamb voting on what to have for lunch. Liberty is a well-armed lamb contesting the vote." -Benjamin Franklin

  5. #5
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    I assume that when you say "forearm" you mean a rail system? You were essentially trying to fit a "gas block" under the rail, correct?

    If so, I will echo what others said. Reinstall it, cut it and shave it and then you will be back in business.

    Quote Originally Posted by jeto View Post
    epic fail at the range. had to shoot my ar like it was a bolt action. bought a new forearm so i had to get a new gas block since the forearm wouldn't fit with the a2 sight. guy from rock river arms said " this one will work perfect". get home, put it on, guess what didn't work. i need an extended low pro gas block for the bushmaster carbine barrel. now i need to find one.



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  6. #6
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    What makes you think it's the gas block and not the installation of it that is the problem?

  7. #7
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    Quote Originally Posted by Breadman View Post
    cut the front site off your old gas block, then shave it down with a dremel to fit under the rail. Spray with black header paint or alumahide, and yer done.
    Actually Birchwood Casey's Aluminum black is better for that. Just a chemical reaction.






    Between two groups of people who want to make inconsistent kinds of worlds, I see no remedy but force. - Oliver Wendell Holmes.

  8. #8
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    Quote Originally Posted by Todd.K View Post
    What makes you think it's the gas block and not the installation of it that is the problem?
    +1. Most companies' parts seem to be pretty compatible, for the most part. Does the block not slide far enough back to line up the ports in both the barrel and the block? That's definitely one of those things you want to test before assembling other parts over it.

  9. #9
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    yes that was the problem, the ports didn't line up. about 3/4" to far out. what do you recommend for cutting the original sight? seems to be rather strong.

  10. #10
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    I use a hack-saw and a lot of elbo grease. You will need to remove the FS and most likely, the bayonet lug, if it has one. You could also use a dremel, but be prepared to replace several cutting wheels.

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