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Thread: RRA barrels. M4 feed ramps?

  1. #1
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    RRA barrels. M4 feed ramps?

    Do RRA barrels have m4 feed ramps? specifically their 16'' lightweight mid-length barrel?

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    I dont know about RRA but you can buy a BCM barrel of the same type or a DD with either a pinned FSB or gasblock. They will definitely have M4 feedramp barrel extensions and be way better quality barrels overall.
    Last edited by Col_Crocs; 02-10-12 at 00:13.

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    I am looking for a 1:9 twist barrel. DD and BCM do not advertise 1:9 twist barrels. thanks.

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    Why do you want a 1:9 barrel?

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    What's your reasoning for wanting a 1/9" twist barrel? Unless you're going to be shooting sub-50 gr projectiles then the 1/7" is the better option.

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    All these new members starting threads about RRA lately.
    Is there a big marketing push with RRA?

    OP, look for a different barrel.
    Rock River is just not up to spec.
    Wrong material, tight chambers, etc.
    Daniel Defense had some 1/9 twist barrels. (They do have the extended feedramp cuts.)
    https://danieldefense.com/cold-hamme...arrel_twist=38
    Quote Originally Posted by scottryan View Post
    Anybody that owns or sells pistol versions of assault rifles is a bottom feeder, irregardless of the ban status of certain ammunition.

    They are illigetimate weapons that have no real purpose other than to attract retards to the gun community.

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    I owned a RRA as my first AR-15. It did not have true M4 feed ramps. It had two the two makeshift feed ramp indentions that they cut out with a dremel or some other tool before they installed the barrel. They didnt line up perfectly.

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    On my previously owned RRA ET upper, the ramps were dremeled and that is why it is "previously" owned. I used the money to buy a BCM upper.

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    Quote Originally Posted by duece71 View Post
    On my previously owned RRA ET upper, the ramps were dremeled and that is why it is "previously" owned. I used the money to buy a BCM upper.
    AGREED! Sold RRA upper for $450. Bought BCM upper for $399, already owned DD rail.....its like cheating, really.

  10. #10
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    Quote Originally Posted by Leonidas24 View Post
    What's your reasoning for wanting a 1/9" twist barrel? Unless you're going to be shooting sub-50 gr projectiles then the 1/7" is the better option.
    really? where did you read that? a 1:9 twist barrel is a very good option.
    the answer to the question is the barrel in question does not have m4 feed ramps
    Last edited by infantryman; 02-10-12 at 17:40.

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