[Starboard]

They even have a spent shell casing in the air.

A nice "touch".

Any idea as to why the strap appears to be on an outward angle rather than dropping straight down? It looks a little odd to me, unless it may be due to a sweeping action.

[KoRn]

" Any idea as to why the strap appears to be on an outward angle "

It appears to be fastened to the top of the weapon which could cause it to go out a little before going down.