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Thread: 20 Inch Barrel?

  1. #11
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    M4 feed ramps have a sharper, steeper angle, which in theory can affect accuracy. If they aren't needed, why add them?

  2. #12
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    Well I never thought of that (angle change in relation to scraping the bullet) but I guess that could be a concern. But if this were an issue, wouldn't it be an issue on all weapons with M4 ramps? Seems to be everyone has moved to those for some reason.
    "You done good. Remember the rules of home gun smithing: Measure it with a micrometer, mark it with chalk, cut it with a torch/dremel, grind it to fit, paint it to match with a sharpie!"

  3. #13
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    If the upper has M4 ramps, the barrel should as well.

    Not currently in stock, but-
    http://www.shop.dezarms.com/product....&categoryId=10
    INSIDE PLAN OF BOX
    1. ROAD-RUNNER LIFTS GLASS OF WATER- PULLING UP MATCH
    2. MATCH SCRATCHES ON MATCH-BOX
    3. MATCH LIGHTS FUSE TO TNT
    4. BOOM!
    5. HA-HA!!

    -WILE E. COYOTE, AUTHOR OF "EVERYTHING I NEEDED TO KNOW IN LIFE, I LEARNED FROM GOLDBERG & MURPHY"

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  4. #14
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    My upper does have M4 ramps. I just might go with the BCM barrel.

    Doesn't the Marine Corps M16A4's come with M4 feed ramps?
    Last edited by ContractSoldier; 07-06-11 at 08:44.

  5. #15
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    Here's a Sabre Defense with 1/7, M4 ramps, chromed bore and chamber (5.56) and F-sight. Third one down the page: http://www.pkfirearms.com/Sabre_Defence_Barrels/65/c
    By three methods we may learn wisdom: First, by reflection, which is noblest; Second, by imitation, which is easiest; and third by experience, which is the bitterest. - Confucius

  6. #16
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    White Oak Armory There is both a DMR barrel with flutes and a plain one without. You can get a F marked sight post with it for an additional cost.
    "You done good. Remember the rules of home gun smithing: Measure it with a micrometer, mark it with chalk, cut it with a torch/dremel, grind it to fit, paint it to match with a sharpie!"

  7. #17
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    Please use the ORANGE search button. There is alot of information posted here about feedramps. The short answer is that M16 rifles don't need it. The M4 does.

    Quote Originally Posted by ContractSoldier View Post
    My upper does have M4 ramps. I just might go with the BCM barrel.

    Doesn't the Marine Corps M16A4's come with M4 feed ramps?



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  8. #18
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    Quote Originally Posted by nynco View Post
    White Oak Armory There is both a DMR barrel with flutes and a plain one without. You can get a F marked sight post with it for an additional cost.
    The man asked for Govt profile...

  9. #19
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    I pulled one of the 20" barrels from a BCM upper and used the flat top receiver for another project.

    Or check the link below for a "FN Original M16-A2 Barrel Grade A, 1 in 7 twist.(Excellent Condition)", but it probably won't have the F marked front sight.

    http://www.ohioordnanceworks.com/Parts/Barrels.cat
    Last edited by Dump1567; 07-06-11 at 20:48.

  10. #20
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    Thanks for all the replies and the links.

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