After recently reviewing my old 3D model of Boba Fett’s blaster, I discovered quite a few discrepancies in details and dimensions from the actual prop. I was initially concerned with bracket for the stock because, remembering from when I first modeled it, it was not quite right. In fact, the bracket was way off in its appearance. Then as I started working on the bracket and I discovered even more incorrectly dimensioned parts. Therefore, the best course of action was to start over from scratch. I could go over all the problems with the first model but there would be too many to list.
The Blastech EE-3 Carbine rifle prop used by Boba Fett in Return of the Jedi, like the one in The Empire Strikes Back, started with a WWI Era Webley & Scott No. 1 MKI flare pistol. Various found parts were added onto it including a 4×20 riflescope. The ROTJ version of the prop is significantly different from the one in The Empire Strikes Back and most notably in the design of the gun barrel. The prop was much more refined as it was in several close-ups shots.