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Thread: Any feedback on this Trigger Chip McCormick

  1. #11
    Join Date
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    Quote Originally Posted by Iraqgunz View Post
    I am 99% certain that cannot happen with the M16 based upon the design.
    It has happened more than a few times, where the upper receiver basically shears apart and blows out the sides. Had a buddy who was standing at the range one day next to a guy who had this happen. Luckily the shards in my buddies neck and arms weren't too small and could be pulled out easy enough.

    Btw... if I can find a picture of the injuries, and also of the gun on the net, I'll pm it to you. It was a pretty top end AR as well to note. Started going in FA and I guess a round didn't chamber right, and basically detonated the casing from the absolute chop of the bad FCG. Either way I wasn't there to witness it, so I guess it's only as so true as I trust my good buddy. But either way, things tend to always be exaggerated in talk, but those pics were def scary though.
    Last edited by discreet; 01-01-12 at 02:00. Reason: the btw part added in.
    From TOS ... "buy the shit out of that thing, all the mil spec is just nonsense."

  2. #12
    Join Date
    Apr 2007
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    If firing pin and bolt are in spec an out of battery detonation due to hammer fall is impossible in an AR with an in-spec BGC.

    The firing pin cannot reach the primer until the bolt collapses during the locking process.
    The bolt locks by contacting the breech and turning (due to the cam slot), which interlaces the lugs of the bolt and barrel extension, as the BCG moves forward, driven by the action spring. You can easily see this by pushing forward on the firing pin head while rotating the bolt into the BCG.

    Add to that the fact that the bolt does not capture the case head until the cartridge is already chambered, which decreases the probability of an out of battery detonation as the firing pin is kept separate from the cartridge until late in the chambering process.

    If an AR has an out of battery detonation it is not a fault of the FCG.
    Pretty much all kBs in AR's are due to case head separation or a blocked bore.
    Jack Leuba
    Director, Military and Government Sales
    Knight's Armament Company
    jleuba@knightarmco.com

  3. #13
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    I have the CMC single stage w/flat trigger in three, soon to be four, of my AR's and I have had no problems. Very good triggers.

  4. #14
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    Quote Originally Posted by floridajpr View Post
    I have the CMC single stage w/flat trigger in three, soon to be four, of my AR's and I have had no problems. Very good triggers.
    Not "triggers". They are "Fire Control Groups" IE FCG. IMO someone saying something is a "trigger" is as bad as saying a Magazine is a "clip".
    From TOS ... "buy the shit out of that thing, all the mil spec is just nonsense."

  5. #15
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    Quote Originally Posted by discreet View Post
    Not "triggers". They are "Fire Control Groups" IE FCG. IMO someone saying something is a "trigger" is as bad as saying a Magazine is a "clip".
    No, the trigger is part of the FCG. You're being ridiculous.

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