I did a little work on this scope today.
Scope tip - 15.4x mm
Roughly....
Julien's auction Bell - 26-28 mm OD Diameter - you can see how far up the scope ring sits, choking the cone
"other" ROTJ looking like - 33 mm OD Diameter - Absolutely
3/4" Scope tube
Fake ROTJ Scope and E11 Scope - 33-35 mm OD Diameter
The caps look to all be around 35 mm in diameter... Still can't ID the part
See - I believe the "Other" and the Julien's auction blaster have real scope bells.
I'm finding 28mm 3/4" tubes
really hard to come by. You know what isn't?
The scope that the front tip came from. What if it's a type of 4x20?
The holster shot includes the bushing tube/spacer.. I dunno... maybe my measurements are off, because the "Other"blaster scope seems a bit large of a measurement. a 28 mm scope bell couldn't house a 28 mm lens, it would have to be smaller...