Custom M1928 Thompson Upper Reciever !!Update!! 2/12

Well, alot of you know I recently got AZR Machine and Tool Co.'s Thompson parts kit, but it did not come with an upper reciever. So, I decided to take it into my hands to try to make one myself. I mean, I know im never gonna find the Mosquito Molds M1928, so I made one for myself. I found someone who had a broken 1921 Chicago Typewriter Springer Thompson, so I took it off his hands, and managed to salvage the upper reciever, and the Drum Magazine. I hollowed out the 1921 upper reciever from the springer, and then fit it over the m1a1 reciever. Im gonna use Tommy Gunners (member on WW2AA) proccess to make the drum mag work, but heres some pictures of the Upper reciever in progress. Im still working on the ejector port on the right side of the Thompson, and the mag catch. and it is proving to be VERY hard. Notice that where the upper reciever meets the lower reciever, there is a sloppy mess, that is the adhesive I used to adhere the 1921 reciever to the existing m1a1 reciever. Ill eventually sand it off. Heres the pictures. More to come Let me know what ya'll think

Heres what the upper reciever looked like after I hacked off the molded on lower reciever.