well, why not put this cylinder

http://www.airsoftparts.ca/store2/in...roducts_id=777

It has range from 300 mm to 450 mm which a CQB M4 barrel is 300 mm and Regular is 450 mm. The best solution is getting something like ICS M4A1, Perfect to swap for indoor and outdoor with just half minutes.

This may be true. However, a V3 mechbox can take it.

since the AUG has teh ability to pull teh outer barrel out with a simple turn of a switch and a twist of the barrel ...porvided i protect it would I just be able to carry a full length outer/inner barrel assembly and a carbin barrel assembly?

Yes. When I had my CQB setup, I had seperate short/long barrel assemblies complete with inner barrel, hopup, and vert grip.

I think Ill do that then... Im still gona get a silencer cuze they look cool