General ROTJ Boba Fett left gauntlet LED

Mando Comando

New Hunter
Hey everyone!
I've come across another snag in my construction. Boba Fett's ROTJ left gauntlet with the rocket and flame thrower has what looks like a red flat surfaced round pilot light to the right of the rocket mount. I bought one off of eBay but I'm afraid it's circumference is just a hair too big, but is otherwise perfect. My question is where do/did you Boba's get your left gauntlet pilot light?
 
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