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.
20GDS.dat
GUID fe192c95602347c4b9cbfdefec5e7733
Type Magazine
Rarity Legendary
ID 52359
Size_X 1
Size_Y 1
Size_Z 0.01
Amount 2
Count_Min 2
Count_Max 2
Calibers 1
Caliber_0 51296
Pellets 1
Ballistic_Damage_Multiplier 5.5
Spread 0.5
Recoil_X 1.25
Recoil_Y 1.25
Firerate -3
Explosive
Explosion 51008
Range 7
Player_Damage 40
Zombie_Damage 100
Animal_Damage 100
Barricade_Damage 0
Structure_Damage 0
Vehicle_Damage 40
Resource_Damage 50
Object_Damage 75
Explosion_Launch_Speed 25
Tracer 51000
Blueprints 1
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 52359
Blueprint_0_Build 30
Delete_Empty