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What is needed to make a faux Dissipator?

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  • #16
    dieselpower
    Banned
    • Jan 2009
    • 11471

    Originally posted by tuna quesadilla
    I guess I'll just have to agree to disagree with y'all. I'm just the type that needs to see facts and citations rather than what the guy at the gun shop tells me.
    look it up...

    Comment

    • #17
      tuna quesadilla
      Calguns Addict
      • Apr 2006
      • 5147

      Originally posted by dieselpower
      the first Dissys were rifles cut down to carbines. end of story. Its common knowledge.
      Like I said in the very post that you quoted,all I'm asking for is a source for the actual word d-i-s-s-i-p-a-t-o-r, not the concept of cutting down a rifle into a carbine. We all know that that concept has been around since practically the beginning of firearms.


      Originally posted by dieselpower
      look it up...

      I did look it up, and the earliest source I could find for the use of the actual word d-i-s-s-i-p-a-t-o-r to describe a rifle cut down to a carbine was Bushmaster's commercial dissipator which is a carbine-length gas system on a 16" barrel with rifle-length guards and FSB. So *facepalm* right back atcha.

      Comment

      • #18
        dieselpower
        Banned
        • Jan 2009
        • 11471

        Originally posted by tuna quesadilla
        Like I said in the very post that you quoted,all I'm asking for is a source for the actual word d-i-s-s-i-p-a-t-o-r, not the concept of cutting down a rifle into a carbine. We all know that that concept has been around since practically the beginning of firearms.





        I did look it up, and the earliest source I could find for the use of the actual word d-i-s-s-i-p-a-t-o-r to describe a rifle cut down to a carbine was Bushmaster's commercial dissipator which is a carbine-length gas system on a 16" barrel with rifle-length guards and FSB. So *facepalm* right back atcha.
        ok... LOL

        The 605 was Colt's 1st "carbine" variant of the AR15/M16 line. Developed 64-65 it was listed in Colt's 1965 catalog as "CAR-15 carbine". It was basically a standard rifle w/the barrel shortened in front of the FSB to 15", all other parts are the same. There appear to be a number of variations using, auto, burst, auto & burst FCG's & even a mid-length gas system (believed to be a 1 off prototype). The 605 was not officially "adopted" by the military but did show up in small numbers on an apparent trial basis. "Delineating" the "correct" features of a 605 is difficult as there were a number of "variations" of it, most of the surviving pics of the era are of "tool room" rifles & most of the surviving rifles show a wide variation in "collectors" features. These "carbines" appear to have been built as almost "one offs' in most cases w/parts on hand at a time when there was a large changeover to many of the parts, along w/the fact there are different "models" of the 605, 605A, 605B etc w/different features.


        Colt Model 605 was the first. Bushmaster did the same and called it a dissipator, then they changed it to use a hidden carbine system.

        and you are still missing how it "dissipated" heat...hense how it got its name... Think about it. Please explain how an extra FSB dissipated heat better? The reason heat was dissipated faster was due to a shortened dwell. The hot gasses spent little to no time in the gas system before the bullet left the barrel relieving all the pressure. The original was a rifle gas system...
        Last edited by dieselpower; 10-24-2011, 12:05 AM.

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        • #19
          smittty
          Calguns Addict
          • Feb 2008
          • 6251

          Originally posted by tuna quesadilla
          Like I said in the very post that you quoted,all I'm asking for is a source for the actual word d-i-s-s-i-p-a-t-o-r, not the concept of cutting down a rifle into a carbine. We all know that that concept has been around since practically the beginning of firearms.

          I did look it up, and the earliest source I could find for the use of the actual word d-i-s-s-i-p-a-t-o-r to describe a rifle cut down to a carbine was Bushmaster's commercial dissipator which is a carbine-length gas system on a 16" barrel with rifle-length guards and FSB. So *facepalm* right back atcha.
          So you are aguing this because you are short and have small penis!

          Comment

          • #20
            Peter.Steele
            Calguns Addict
            • Oct 2010
            • 7351

            Originally posted by tuna quesadilla
            Like I said in the very post that you quoted,all I'm asking for is a source for the actual word d-i-s-s-i-p-a-t-o-r, not the concept of cutting down a rifle into a carbine. We all know that that concept has been around since practically the beginning of firearms.

            Jesus. The actual word entered the english language from Latin inthe 15th century. It's from the Latin verb dissipare, meaning 'to spread, to scatter.'

            There's the origin of the actual word for you.

            I did look it up, and the earliest source I could find for the use of the actual word d-i-s-s-i-p-a-t-o-r to describe a rifle cut down to a carbine was Bushmaster's commercial dissipator which is a carbine-length gas system on a 16" barrel with rifle-length guards and FSB. So *facepalm* right back atcha.



            From Palmetto State Armory's website, linked earlier in this thread:

            Originally posted by Palmetto State Armory
            Once upon a time, a "dissipator" AR was created by taking a 20" rifle-length gas system upper and cutting the barrel down to 16". This allowed the shooter to keep the long sight radius of a rifle for accuracy, but keep the carbine length barrel for maneuverability. The proximity of the gas port to the muzzle, however, played havoc with timing and made reliability a hit or miss proposition. Advances in AR technology have produced reliable carbine and mid-length gas systems, that can be hidden using low-profile gas blocks. This allows for a front sight base to be pinned in the rifle position for the longer sight radius without the worry of the unorthodox gas port location affecting operation. We use the term "mock" to differentiate our dissipator from a cut-down rifle length version.
            NRA Life Member

            No posts of mine on Calguns are to be construed as legal advice, which can only be given by a lawyer.

            sigpic

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            • #21
              FatalKitty
              Veteran Member
              • Apr 2010
              • 2942



              REAL dissipator

              mock DISSY would be a slave gasblock.

              back to the subject of HOW:

              tap the gas tube hole on the front sight block for a socket head cap screw.
              install the A2 handguard cap, install the FSB and use the set screw to hold the cap to the block. MOE rifle guards will now fit
              you don't rise to the occasion,
              you just fall back on your level of training.

              Comment

              • #22
                dieselpower
                Banned
                • Jan 2009
                • 11471

                Originally posted by FatalKitty


                REAL dissipator

                mock DISSY would be a slave gas block.

                back to the subject of HOW:

                tap the gas tube hole on the front sight block for a socket head cap screw.
                install the A2 handguard cap, install the FSB and use the set screw to hold the cap to the block. MOE rifle guards will now fit
                Thats basically it. I have a whole PDF I wrote on how to do it. I created a new part that is a 2 piece clamp-on A2 FSB with a handguard cap attached. All you have to do is remove the old sight tower (cut it off the gas block) and install this new part. The only problem was the cost to produce the new "Dissy style A2 clamp-on FSB with handguard cap" was as too much. The end cost to the consummer was over what a Gunsmith would charge to make your carbine into a dissy. It was nearly as expensive as buying a premade dissy barrel.

                Comment

                • #23
                  FatalKitty
                  Veteran Member
                  • Apr 2010
                  • 2942

                  Originally posted by dieselpower
                  Thats basically it. I have a whole PDF I wrote on how to do it. I created a new part that is a 2 piece clamp-on A2 FSB with a handguard cap attached. All you have to do is remove the old sight tower (cut it off the gas block) and install this new part. The only problem was the cost to produce the new "Dissy style A2 clamp-on FSB with handguard cap" was as too much. The end cost to the consummer was over what a Gunsmith would charge to make your carbine into a dissy. It was nearly as expensive as buying a premade dissy barrel.
                  FWIW I got my dissipator barrel from jse surplus. it is not chrome lined but at $150 it's a great barrel... accurate as all hell and so far I've put about 7k rounds through it, still going strong. I am guessing I am at or near my limit of what I can get out of this barrel so I will be buying another of the same one to replace it.

                  alternative would be the CMMG chrome lined but it's $350 and a waiting period
                  you don't rise to the occasion,
                  you just fall back on your level of training.

                  Comment

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