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.
Saiga-12 Mag Slug.dat
GUID 1eab2720c8f04b2fa9d491c914186ab6
Type Magazine
Rarity Rare
ID 58834
Size_X 1
Size_Y 2
Size_Z 0.3
Amount 8
Count_Min 3
Count_Max 7
Calibers 1
Caliber_0 56029
Spread 0.25
Shake 1
Recoil_X 1.1
Recoil_Y 1.2
Ballistic_Damage_Multiplier 4.8
Equipable_Movement_Speed_Multiplier 0.995
Pellets 1
Tracer 48
Explosion 55074
Explosive
Shell 55050
Blueprints 8
// 8 shells
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 58238
Blueprint_0_Build 55048
// Saiga-12 mag
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 58361
Blueprint_1_Supply_0_Critical
Blueprint_1_Build 55048
// 2 shells
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 58239
Blueprint_2_Build 55048
// Saiga-12 8rnd mag
Blueprint_3_Type Ammo
Blueprint_3_Supplies 1
Blueprint_3_Supply_0_ID 58834
Blueprint_3_Build 55048
// 5 shells
Blueprint_4_Type Ammo
Blueprint_4_Supplies 1
Blueprint_4_Supply_0_ID 58951
Blueprint_4_Build 55048
// AA12 Mag
Blueprint_5_Type Ammo
Blueprint_5_Supplies 1
Blueprint_5_Supply_0_ID 58956
Blueprint_5_Supply_0_Critical
Blueprint_5_Build 55048
// AA12 Drum
Blueprint_6_Type Ammo
Blueprint_6_Supplies 1
Blueprint_6_Supply_0_ID 58959
Blueprint_6_Supply_0_Critical
Blueprint_6_Build 55048
// MAG-7 Mag
Blueprint_7_Type Ammo
Blueprint_7_Supplies 1
Blueprint_7_Supply_0_ID 59716
Blueprint_7_Supply_0_Critical
Blueprint_7_Build 55048