Omega Man
Active Hunter
Looking on the ref pics i noticed the ROTJ Blaster has a metal plate and 2 phillips roundhead screws holding it in place. This would be the end of the wood stock, where it rests against your shoulder.
The ref pics are:
http://www.essat.cl/cdref/0401_0500/Boba_Fett_458.jpg
http://www.essat.cl/cdref/0401_0500/Boba_Fett_454.jpg
The ref pics are:
http://www.essat.cl/cdref/0401_0500/Boba_Fett_458.jpg
http://www.essat.cl/cdref/0401_0500/Boba_Fett_454.jpg