Convoy M1 MTG2 Build

wwwsam · November 24, 2015, 12:58am

tristanxoxo:

wwwsam:

Just baught this very extension tube and it definitely fits the tailcap of OLD Convoy M1.
However, as keithd mentioned, to make it fit the tube side perfectly it seems you have to sand down the inside of the extension tube (part that is supposed to go over the o-ring).
Goodluck with that though, you’ll most likely probably sand through the tube before it fits (as there isnt much). Easier to cut off the excess and not use the o-ring.

OR you could do what Mr. Nobody seems to have done and have the extension tube hanging on by one-thread. (You can see the o-ring in his pictures).

Well one mystery solved :D.

Thanks for reporting back. However since the threads on the M1 tube and tailcap are anodized, how would you make a electrical connection for the ground?

Haha good point.
However nothing is perfectly anodised and even if it was perfectly anodised, you can screw the extension on or off a few times and it should be enough to wear it out enough for contact.
Just tested and mine (even with one thread hanging) is enough to make contact.

wwwsam · November 25, 2015, 4:16am

Well despite what I said, I was bored and decided to grind down the inside with a dremel.
It takes a long time but I eventually got there.
Heres the final:

Also as tristanxoxo mentioned, I did have a little bit of trouble with the anodising but after a bit of dry unscrewing/screwing it was ok.
A better way to do it would probably be to find that brass contact thing in the Convoy M1 and hammer it into the extension tube.
The tail cap, for some reason, I had no problems.

tristanxoxo · November 25, 2015, 2:17pm

That looks great! Thanks for reporting back.