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.
PS_WKM_Mag.dat
GUID 6f3882bc081946dea51009151202b541
Type Magazine
Rarity Legendary
ID 59319
Size_X 1
Size_Y 2
Size_Z 0.295
Amount 18
Count_Min 3
Count_Max 12
Calibers 1
Caliber_0 59319
Tracer 59040
Blueprints 3
Blueprint_0_Type Tool
Blueprint_0_Searchable False
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 58999
Blueprint_0_Supply_0_Amount 1
Blueprint_0_Tool 58999
Blueprint_0_Tool_Critical
Blueprint_0_Build 27
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 59319
Blueprint_1_Build 30
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 59291
Blueprint_2_Build 30
Range 4
Player_Damage 8
Zombie_Damage 8
Animal_Damage 8
Barricade_Damage 0
Structure_Damage 0
Vehicle_Damage 0
Resource_Damage 0
Object_Damage 15
Explosion 59059
Explosive
Explosion_Launch_Speed 0