Soda Can barrel Modify

[jsefcik]

Hey guys its jsefcik, hope all is well my fellow friends i havent posted in a long time but im looking for some help


I finally found a supplier who has weird sizes of metal pipe that will fit a soda can perfectly but im at a stand still

The pipe is a weird size of 3 and a 1/4 with a 1/4 inch wall,

My barrel port is 1.5 inch they dont carry fittings normally for that to properly work, what the best way to achieve mounting the 3.25 inch pipe with 1/4 inch wall to 1.5 inch female threads??? Thanks guys