[Blackthorne]

Please forgive me if there is a kit out there that does this! I looked (Google) and couldn't see anything...

BACKGROUND:

I am currently running a TM M4 with an extended barrel and a Silencer on it to cover the extention.

CURRENT SITUATION:
Rather than buy a second gun for CQB I switch out the barrel. (I don't do it enough to justify a second, dedicated gun). I take out the longer barrel and remove the silencer, then install the stock barrel put on the stock flash suppressor.

GOAL:
I would like to have someone machine the following, or tell me if it is "possible". Possible means a solution that would be cheaper then the purchase of a dedicated gun with upgrades:

A silencer attachemnt that screws onto the existing outer barrel, that also contains an extention for the inner barrel.

In other words, I want to pop in a silencer when I need a feild gun and the advantages of a longer barrel, and take it off when I go CQB and enjoy the advantages of a shorter wepon, but not have to take the gun apart and swap the barrel.

I figure it this way:

1. Tap threads on the outside of the shorter internal barrel I have

2. Find tubing that matches the internal diameter of the inner barrel, but it thick enough to accept threads on the inside that would mate it to the inner barrel. The alternative is to have the inner barrels simply slip together under the force provided by screwing the suppressor assemly on.

3. Find a way to mount it into a silencer tube.

This way I would simply take off the flash suppressor and screw on a silencer with an inner barrel extention. One step, done at the feild with no special tools in under 30 seconds.

I think this is doable, but I don't have the gear or skills.