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Thread: Modern Sporter - Build Discussions

  1. #1541
    GunNutz scourge18a's Avatar
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    Quote Originally Posted by Patt08 View Post
    Lol. Sigh. I’ll see what happens I suppose.
    I am using Brownells lightweight BCGs so that may be part of it

  2. #1542
    GunNutz ColinD's Avatar
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    Those are the same bolt carriers I'm going to be using. Let the thread know what ended up working, I'll probably be building mine next week or so once it's back from cerakoting

  3. #1543
    Super GunNutz Patt08's Avatar
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    Delete
    Last edited by Patt08; 12-05-2019 at 11:55 PM.
    |CCFR|

  4. #1544
    Business Member Rep. ATRS Shaun's Avatar
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    Quote Originally Posted by ColinD View Post
    Those are the same bolt carriers I'm going to be using. Let the thread know what ended up working, I'll probably be building mine next week or so once it's back from cerakoting
    Ironically this was covered for a bunch of people in the first production run as well. The Brownells Lightweight carriers have so much material slabbed off the side, they skip right past the little knob on the dust port covers. I see it as two possible options:
    1) Let/Trust the brass to knock it open. I see this as having the potential to introduce jams though which I don't love.
    2) Add material onto the backside of the dust port cover so that it IS contacted by the lightweight bolt carrier.

  5. #1545
    GunNutz ColinD's Avatar
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    I remember reading about that BCG, combined with the SI dust cover causing trouble, both of which I'm using. Didn't realize that the light weight BCG was the root cause, and not necessarily which cover was used.

    I have the perfect epoxy ready to use.

  6. #1546
    Super GunNutz jiffx2781's Avatar
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    Quote Originally Posted by ATRS Shaun View Post
    Ironically this was covered for a bunch of people in the first production run as well. The Brownells Lightweight carriers have so much material slabbed off the side, they skip right past the little knob on the dust port covers. I see it as two possible options:
    1) Let/Trust the brass to knock it open. I see this as having the potential to introduce jams though which I don't love.
    2) Add material onto the backside of the dust port cover so that it IS contacted by the lightweight bolt carrier.
    There is a proper fix I've found to the lightweight bcg/ejection port cover compatibility issue....

    It's called a Brownells Titanium M16 or AR15 bcg because they are made to standard dimensions.
    "Arguing with idiots is like playing chess with a pigeon..... No matter how good you are, the bird is going to s#!t on the board and strut around like it won anyway."

  7. #1547
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    or, hear me out here guys...you couldnt just not use a dust cover since theyre generally not necessary unless youre crawling through dirt/mud or trekking through a dust storm. Trips to the range, or walks in the woods or up a mountain, especially not under time constraints or stress means you dont really need one. Just my casual 2 cents
    f:P

  8. #1548
    Super GunNutz jiffx2781's Avatar
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    Quote Originally Posted by HotSoup View Post
    or, hear me out here guys...you couldnt just not use a dust cover since theyre generally not necessary unless youre crawling through dirt/mud or trekking through a dust storm. Trips to the range, or walks in the woods or up a mountain, especially not under time constraints or stress means you dont really need one. Just my casual 2 cents
    "Arguing with idiots is like playing chess with a pigeon..... No matter how good you are, the bird is going to s#!t on the board and strut around like it won anyway."

  9. #1549
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    I mean if you say so. None of my AR builds have dust covers. I think it looks cool and Ive never had debris enter the ejection port.
    f:P

  10. #1550
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    Its a brownells lightweight bcg issue. All others seem to be fine

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