how does this compare with a real sterling. photos from us don't cover the exact dimensions.
the front of the slot and the charging handle and the orientation shows the design of the Dday tube.
we have to use the original sterling, with an original tube. full auto. to make exact measures.
using DDay tube I like the position of the bolt and of the charging handle!
I think it looks just fine and I don't feel that the inner barrel really adjusts the seat for the main bolt that much.
let me dig up a photo