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Thread: Colt MT6400C vs. Colt 6920

  1. #41
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    Quote Originally Posted by gotm4 View Post
    I believe the newest ones I've seen from Colt in their commercial rifles were shrouded but still 1/2 circle. Yes, the 6920 has a M16 carrier.

    Commercial Colt is kinda weird, they do a combination of things so that you can't add an auto sear or M16 FCG parts and mil-spec sized pinned uppers on to their lowers. These things are different (larger) hammer and trigger pins, hardened block above the safety, and large pivot pin uppers.

    If you want an M16 carrier you can buy one and just add it to a 6400 if you don't have the lower receiver block in it, and either sell or just use the 6400s carrier in another rifle build. Some full circle carriers will still work even with the block in the lower. The RRA has a bit longer section at the tail and may not fit. If you do run a M16 carrier it's wise to get a non-notched AR15 hammer (these are available from DPMS).
    Sounds like I need to just get a 6920...lol...
    I know where there are 5 for 1,500 each...
    But am going to call around.
    Also is it a big deal to have the comp removed form a 6400 and the barrel threaded to accept a FS of your choice.

    Thanks again, I can't tell you how much of a help you have already been.

  2. #42
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    Quote Originally Posted by Greenbean View Post
    Also is it a big deal to have the comp removed form a 6400 and the barrel threaded to accept a FS of your choice.
    In 2004, I shipped my upper to ADCO (an Authorized Dealer on this forum). Around $60 & 10 days later, I had the upper back with an A2 flash suppressor.

    http://http://www.adcofirearms.com/shopservices_.cfm?page=shop

  3. #43
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    Thanks cqbdriver

    I just called Lawmans Safety in Raleigh and he said they just got in 20, 6920 Colts, for 1,250.00 each, so I am not buying the used 6400 for 1,000. That would be stupid of me...wouldn't it...

    Thanks for the info...

    It will not be my last series of questions...

  4. #44
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    You won't regret getting the LE6920.

    You did make one mistake - never let people know about a good deal until you have your rifle in your hand!

    Correct response would be: "I just got a LE6920 for $1250 & there are 19 left if anyone else wants one."

  5. #45
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    you wanna throw me the info on the MT for 1000$?

  6. #46
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    Quote Originally Posted by cqbdriver View Post
    You won't regret getting the LE6920.

    You did make one mistake - never let people know about a good deal until you have your rifle in your hand!

    Correct response would be: "I just got a LE6920 for $1250 & there are 19 left if anyone else wants one."
    ROFL...Your funny!

    I will have mine, no worries mate...
    I have never been one to hide a bargain...Some people will take advantage of it and get a deal. Then I helped them out. Also if they sell them faster then I helped out a bussiness that is a law enforcement sales only place.

    Trust me if I didn't like the place I wouldn't have said anything.

  7. #47
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    Quote Originally Posted by chapperjoe View Post
    you wanna throw me the info on the MT for 1000$?
    I.M. sent...

  8. #48
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    Mine has the S/A half-moon carrier with unshrouded firing pin, and the bolt was simply marked, "C" (not the "MPC" like my 6920/21's). Upper receiver forge markings vary, and older lowers say Colt's Mfg while the newer said Colt Defense. My upper is marked M4, but I don't remember if the bottom was milled for autosear. Its still back home in the states so I can't check it now.

    The first batches had the brakes attached with roll pins. After getting complaints, they switched to solid pins. Here's a good photo someone posted years ago on TOS:


    From a fighting gun standpoint, the 6920 is the logical choice. From a collector's standpoint, the 6400C can still command high prices simply because of the unique markings of the lower receiver. I sold the fixed stock on the EE to someone in CA for $60, but haven't dealt with the muzzle brake yet. I don't really care about the bayo lug issue. They don't fix 16" anyway, and if they did I still wouldn't use one.
    Last edited by Kisara; 03-13-07 at 01:31. Reason: Resize the huge photo

  9. #49
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    Quote Originally Posted by Kisara
    I don't really care about the bayo lug issue. They don't fix 16" anyway, and if they did I still wouldn't use one.
    I didn't know that, what about the M4s though...

    I need to research that.

  10. #50
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    For M4, you need a 14.5" barrel for the bayonet to attach properly. The bayonet uses the Flash Suppressor & front sight for attaching to rifle.

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