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Thread: Has anyone actually experienced a BCG failure?

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    Has anyone actually experienced a BCG failure?

    I have an older Colt 6520 Government Carbine (produced just after the AWB). It has the SA non-shrouded firing pin. In my research, people "suggest" a shrouded BGC over the non-shrouded.

    Their logic makes sense, but has anyone actually experienced a failure due to a non-shrouded BCG? While I can understand the theoretical reasoning, I haven't read any facts.

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    Several years ago I fixed a Colt that had very rough ragged edges at that bevel cut and clean up the edges at that cut because it was causing functioning issues interfering with the operation of the firing pin firing pin and jacking up the hammer. Had it had a non-notched hammer and a shrouded carrier it wouldn't have ever had that issue.
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    Neutered BCG's are a waste of time and money and exist solely because of stupid laws (previous or imagined).



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    Quote Originally Posted by Robb Jensen View Post
    Several years ago I fixed a Colt that had very rough ragged edges at that bevel cut and clean up the edges at that cut because it was causing functioning issues interfering with the operation of the firing pin firing pin and jacking up the hammer. Had it had a non-notched hammer and a shrouded carrier it wouldn't have ever had that issue.
    Thanks Robb. That's the kind of response I was looking for. Everyone has an opinion and I'm looking for answers that can back it up with fact rather than opinion.

    If I opt for changing the OEM BCG, will I need to change the hammer too?
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    Quote Originally Posted by TedG View Post
    Thanks Robb. That's the kind of response I was looking for. Everyone has an opinion and I'm looking for answers that can back it up with fact rather than opinion.

    If I opt for changing the OEM BCG, will I need to change the hammer too?

    You don't have to change hammers but I always prefer a non-notched hammer when using a stock/OEM type trigger group since it was designed that way.
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    It wasn't an opinion. The AR15 as designed was supposed to use an auto BCG. All of the neutered crap came about as ways to make people happy that the weapons couldn't be converted to auto.

    So you should use whatever BCG that isn't neutered in your particular weapon.

    Quote Originally Posted by TedG View Post
    Thanks Robb. That's the kind of response I was looking for. Everyone has an opinion and I'm looking for answers that can back it up with fact rather than opinion.

    If I opt for changing the OEM BCG, will I need to change the hammer too?



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    Quote Originally Posted by Robb Jensen View Post
    You don't have to change hammers but I always prefer a non-notched hammer when using a stock/OEM type trigger group since it was designed that way.
    Because of the Colt anti-FA block in the lower, it appears that I'd have to use one of the two middle BCG pictured above. My BCM BCG obviously doesn't fit. Again, thanks for your help.
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    Quote Originally Posted by TedG View Post
    Because of the Colt anti-FA block in the lower, it appears that I'd have to use one of the two middle BCG pictured above. My BCM BCG obviously doesn't fit. Again, thanks for your help.
    Cut that thing off or better yet sell your rifle to a collector and buy a new one with the correct carrier and pin sizes. As a tool I don't think there is a good reason to keep a non standard AR around (unless you need a pre ban in your state).

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    Quote Originally Posted by TedG View Post
    Because of the Colt anti-FA block in the lower, it appears that I'd have to use one of the two middle BCG pictured above. My BCM BCG obviously doesn't fit. Again, thanks for your help.
    They're called sear blocks. They can be cut out. I took one look at one and decided not to do it myself (or even to buy the lower). ADCO has a good track record of successfully removing them. Suggest you give them a call, get it cut out, and get a non-homo BCG. I've never had to use a non-shrouded BCG so I can't directly answer your question. Just offering an alternative solution that would allow you to use standard parts.
    Last edited by a0cake; 11-01-11 at 18:54.

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    Discussion about this "Era" of Colt rifles comes up around here every so often. Some "Knowledgeable" folks put them down while other "knowledgeable" folks say run with them they are fine. The parts in them still went through the same testing as non neutered rifles but were just made to be harder to convert.

    I asked this question a few months back:

    Has anyone ever run one of these Colts hard, like through a carbine course. No one replied, but my guess is that they would run just fine.

    So.................has anyone done this ? Or, are these opinions just based on conjecture ??

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