Awesome work my friend

The helmet is starting to look ace!
Just wanted to say also, with the SA80, there may be a few things you may want to consider.
If you intend to keep it as a functional airsoft rifle (im assuming it would be airsoft you'd use) then be aware that the gearbox stretches most of the way through the buttstock, so shaving the back end down to the size of the AR would most likely involve taking the gearbox out. If you aren't having it functional that wouldn't be a big issue though. And also, the AR's upper receiver is all straight throughout the body of the rifle, while the SA80's tapers at an angle, which could be a hinderance. Just food for thought
Anyway, again, great work!
- X.