Originally Posted by Deadfall
Sooo. . . what's that fourth tube for?
It's a brass Rock. There's a small brass hardline on the other side of the gun that connects the valve chamber to the LPR. Very slick and just another good example of Doc's superb work.
And no, it isn't functional as of yet. It needs a lot of fine tuning and some part fabrication before it's ready to rock.