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My second M4 AR
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M4 assault rifle with M203 grenade launcher, both of which fire.
About this creation
Having built the first one, I thought I could do better with the general shape of the model, so I rebuilt most of it. It still used exactly the same firing mechanism for the gun (although not for the M203 grenade launcher, which was significantly improved).

I've been inundated with requests for instructions recently. Sorry, but not only do I not have time to make instructions, but also the models have usually been dismantled by the time people ask.

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   Olde Vietnam era version, without the grenade launcher. The only difference is that the magazine is smaller.

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   Without the M203.

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   The firing mechanism. the bit on the left is the trigger. It fires to the right. The + -shaped bit wants to rotate clockwise, but is blocked off.

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   When the trigger is pulled, the + can rotate about 45 degrees, and when the trigger is released it goes the next 45 so it is ready to fire again.


 I like it 
  April 1, 2010
cool gun i like it!
Tom E.
 I like it 
Jasper Jasper
  March 26, 2010
I'm very curious on how you got the grenade launcher working. Is it possible to explain it for us and maybe wanna review my grenade launcher?^^
 I like it 
  May 29, 2009
this is nice, Y dont u join my group? (GMP)
 I like it 
  April 22, 2008
sooo cool,its realy good made and it look likes the real one. Can you make instructions for the grenadelauncher please
Tom E.
 I like it 
Sean Noland
  April 24, 2005
Awesome design, could you send me some pics of the trigger assembly and maybe some instructions on how it works, I've been working on my own AR but I havent been able to find a good firing mechanism that works well other than the one I already have which isnt that great. Well anyway good work and keep it up man.
 I like it 
  January 10, 2005
Amazingly realistic! Great job. -Josh
By Tom E.
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Added October 10, 2004

LEGO models my own creation MOCpages toys shop My second M4 AR

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