Combined 2 different DL-44 files found here on Thingiverse to try and get the proportions a little more to scale. See "Remixed Files" section for source files.
Since this was made by combining two different source files, the flash suppressor doesn't fit snug on the barrel. You will need to find a way to affix securely. I used one of the unused knobs and drilled a hole in the center to use as a washer / retainer. Then took a long screw and secured at the end of the barrel through the front of the flash suppressor.
NOTE: The finished print examples were printed 3/4 sized for my son. Files provided are full size.
Special thanks to Smirf123 & seankfields for published files which allowed me to put this together.
Printed with a high infill because I wanted to make it heavy. Should be able to print with less infill.