Do RRA barrels have m4 feed ramps? specifically their 16'' lightweight mid-length barrel?
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Do RRA barrels have m4 feed ramps? specifically their 16'' lightweight mid-length barrel?
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.
I am looking for a 1:9 twist barrel. DD and BCM do not advertise 1:9 twist barrels. thanks.
Why do you want a 1:9 barrel?
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.
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
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.
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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