Rock Island Armory 1911 - Sight install and tuned. - Page 2
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Rock Island Armory 1911 - Sight install and tuned.

This is a discussion on Rock Island Armory 1911 - Sight install and tuned. within the Pistols forums, part of the Gun Forums category; So what are you doing to the feed ramp ? Just taking material out to make it more rounded ? I notice mine on my ...

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  1. #11
    10111011 mattxander12's Avatar
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    So what are you doing to the feed ramp ? Just taking material out to make it more rounded ? I notice mine on my M&P are very shallow. Does deepening it help with feeding that noticeably ?

  2. #12
    Gunny At Large Adler's Avatar
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    From what I see he smooths and polishes it.



    The Italians have a saying. "Keep your friends close and your enemies closer." And although they've never won a war or mass-produced a decent car, in this area they are correct.

  3. #13
    Gunatics Trusted Vendor brokenarrowtactical.com BrokenArrow's Avatar
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    The machining marks were removed from the feed ramp / throat area. On the 1911, there needs to be a smooth path into the chamber. Any friction points can cause a problem. The feed ramp, throat, breech face, and the insides of the chamber were polished to enhance reliability.

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  6. #14
    Gunatic Loyalist (Bow down) Nose Nuggets's Avatar
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    why don't they make these types of modifications at the factory if they improve reliability?

  7. #15
    Gunny At Large Adler's Avatar
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    Because it costs money, which they pass onto the customer to pay.

    The fact is that they are really selling these as plinker guns so they assume you are only going to use FMJ ammo which will work fine. With the stock GI sights, you don't exactly get a target gun. Auto Ord sells a comparable gun and says that they only guarantee reliability with FMJ ammo.



    The Italians have a saying. "Keep your friends close and your enemies closer." And although they've never won a war or mass-produced a decent car, in this area they are correct.

  8. #16
    Gunatic Loyalist (Bow down) Nose Nuggets's Avatar
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    i dunno it just seems like a negligible amount of time on a machine to archive almost the same results. but your probably right.

  9. #17
    Gunatic Fanatic Charge's Avatar
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    Quote Originally Posted by Nose Nuggets
    i dunno it just seems like a negligible amount of time on a machine to archive almost the same results. but your probably right.
    Because it's a man on a machine...not automated. Just like porting and polishing heads on a car. They don't do it at the factory because you can set certain reasonable tolerances for the production on the casting or machining to get it to be functional. To upgrade it to the level of work he's doing, would require extremely expensive automated machinery(and probably not as reliable) or manual labor(more expensive).

  10. #18
    Gunatic Loyalist (Bow down) Nose Nuggets's Avatar
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    good points all around.

  11. #19
    Gun n00b clement47's Avatar
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    Various AR Gun Builders are known to try out several designs. Specific shapes seem to be crazier than ever. Almost all the stuff you notice lies in the creativity of several people. You can visit a nearby gun shop and craft the weapon in the best possible way.

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