M1A1 Thompson (1:1), a LEGO Brick Replica by Cole Edmonson
Are lego renditions of in game guns allowed? [smg-11] with eotech, extended stock + barrel, vertical grip and laser (base gun design by Jim's Lego guns) : r/Rainbow6
Minifigure Gun - French SMG
UMP 45 Sub Machine Gun Compatible With Brick Minifigures
World War 2 USA Army SMG Soldier - Custom LEGO Military Minifigure – The Brick Show Shop
LEGO MOC LEGO MPX Submachine Gun (Working) by THE_MOC_CHANNEL | Rebrickable - Build with LEGO