This item is not included in any spawn asset, but it doesn't necessarily mean that it doesn't spawn naturally on any of the maps.
40x46mm HE MGL.dat
GUID b0678e324bcdb8f16163d493e89d6fae
Type Magazine
Rarity Legendary
ID 58217
Size_X 2
Size_Y 2
Size_Z 0.2
Amount 6
Count_Min 3
Count_Max 6
Calibers 1
Caliber_0 56037
Player_Damage 125
Zombie_Damage 125
Animal_Damage 125
Barricade_Damage 200
Structure_Damage 175
Vehicle_Damage 40
Resource_Damage 150
Object_Damage 150
Explosive
Explosion 55013
Impact 137
Range 15
Tracer 55052
Equipable_Movement_Speed_Multiplier 0.995
Delete_Empty
Blueprints 1
// Bundling
Blueprint_0_Type Tool
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 58201
Blueprint_0_Supply_0_Amount 6
Blueprint_0_Build 27