Weapon M1 Garand v2.0 for GTA 5 game.
Non Animated M1 Garand
Model source: p3dm.ru
Here is what the meta changes for the heavy shotgun to make it fit more with this M1 Garand.
Gives it 8 shots in both the extended mag and the standard mag because with the garand they was no extended capacity clips.
Adjusts the damage so that it's pretty much a one shot kill against unarmored enemies but against armored enemies it'll take roughly 2 shots to kill depending where you hit them.
The heavyshotgun Now uses the marksman rifles weapon sound (i suggest using the updated bakamania sounds; link above or below).
Found a better model replaced the old one with it.
Drop the contents of the "metas" folder into here:
Now drop all the "w_sg_heavyshotgun" files from the root of the archive into here:
Tested in game version v1.0.877.1