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Thread: MG47ES Belt feed

  1. #121
    Gunco Member lakeracer69's Avatar
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    What spring did you use for a recoil spring and how long?

    Thanks,

    John H. in NH

  2. #122
    SHARPSSHOOTER5090 SHARPSSHOOTER5090's Avatar
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    LK
    I used a m60 recoil spring (from Numrich) and started at 16" and trimmed so it still would feed and not be so strong that it would short cycle. Each build is a little different so you will have to experiment a little.

    SS

  3. #123
    Gunco Member lakeracer69's Avatar
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    Thanks for the info.

    I tried 2 different M60 springs and the old style single wound looks like the one to use. The new style double wound spring is a little wider and won't fit in the gas piston extension without opening it up a little. I might do that as it is a stronger spring.

  4. #124
    SHARPSSHOOTER5090 SHARPSSHOOTER5090's Avatar
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    With the extra parts I made to do the MG47ES tutorial I am making a MG47BP (bull pup belt feed). AK based with a RPD top cover because it is shorter. With the internal ES style FCG and return spring I can cut about 3" off the rear of the receiver and end up with a really short gun. Still staying with a 16" AK barrel and a 26" overall length so I won't be required to SBR it. I will post pictures tomorrow if I can get to it. Still got a few details to figure out like how to put on a G3 style cocking handle and get the trigger bar from the grip stick that's ahead of the FT to the internal FCG.
    Since both my MG47 and MG47ES are big heavy beasts I decided to try CTR's route and build as light and short of belt feed as I can.

    SS
    Last edited by SHARPSSHOOTER5090; 09-07-2008 at 09:38 AM.

  5. #125
    SHARPSSHOOTER5090 SHARPSSHOOTER5090's Avatar
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    I will post some pictures of what I have done on the MG47BP so far as soon as I can figure out how get them do to 2MB file size??? Help please

    SS

  6. #126
    Administrator sniper69's Avatar
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    Quote Originally Posted by SHARPSSHOOTER5090 View Post
    I will post some pictures of what I have done on the MG47BP so far as soon as I can figure out how get them do to 2MB file size??? Help please

    SS
    sharpsshooter - if you want to email me the pics I'll be more than happy to post them for you.
    "To show you how radical I am, I want carjackers dead. I want rapists dead. I want burglars dead. I want child molesters dead. I want the bad guys dead. No court case. No parole. No early release. I want 'em dead. Get a gun and when they attack you, shoot 'em."
    Ted Nugent - speaking at the NRA convention April 17, 2005

  7. #127
    Administrator sniper69's Avatar
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    For pics of sharpsshooter's MG47BP go to the new thread he started at http://www.gunco.net/forums/f252/mg4...bullpup-40733/

    Last edited by sniper69; 09-10-2008 at 10:17 AM.
    "To show you how radical I am, I want carjackers dead. I want rapists dead. I want burglars dead. I want child molesters dead. I want the bad guys dead. No court case. No parole. No early release. I want 'em dead. Get a gun and when they attack you, shoot 'em."
    Ted Nugent - speaking at the NRA convention April 17, 2005

  8. #128
    Gunco Member lakeracer69's Avatar
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    Sharpsshooter,

    Where did you find a 12mm OD bearing X 5mm ID X 5mm width. I have had no luck locally or online. An MG42 bolt actuating pin measured .465" and the top cover feed "track measured about .485". Closest thing around here is:
    11mm X 5mm X 5mm. Any help is appreciated.

  9. #129
    SHARPSSHOOTER5090 SHARPSSHOOTER5090's Avatar
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    I used a 1/2" OD x 3/16" ID X 3/16" wide and ground down the OD to 12MM and it fit fine over a No. 10-32UNF screw. The thickness I left at 3/16". I believe I saw a 12mm OD x 5mm ID x 5mm thick bearing in McMaster-Carr though. An 11mm OD bearing should work, it doesn't have to fit exactly snug. CTR didn't use a bearing, just a stud that fit in the track.

    SS

  10. #130
    Gunco Member cntrailrider's Avatar
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    A cap screw (I believe 5/16") works fine and is less complicated. Take your TC to the hardware store and get one that fits the track. Also easier to move it if your timing is off. To re-position, just weld the hole shut, re-drill and re-tap.

    Steve in El Paso

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