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 AP20.dat
GUID b217939673094feaa49122798574d405
Type Magazine
Rarity Rare
ID 59739
Size_X 1
Size_Y 2
Size_Z 0.3
Amount 8
Count_Min 3
Count_Max 7
Calibers 1
Caliber_0 56029
Spread 0.15
Shake 1
Recoil_X 1.1
Recoil_Y 1.2
Ballistic_Damage_Multiplier 5.5
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 59736
Blueprint_0_Build 55048
// Saiga-12 mag
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 59740
Blueprint_1_Supply_0_Critical
Blueprint_1_Build 55048
// 2 shells
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 59737
Blueprint_2_Build 55048
// Saiga-12 8rnd mag
Blueprint_3_Type Ammo
Blueprint_3_Supplies 1
Blueprint_3_Supply_0_ID 59739
Blueprint_3_Build 55048
// 5 shells
Blueprint_4_Type Ammo
Blueprint_4_Supplies 1
Blueprint_4_Supply_0_ID 59738
Blueprint_4_Build 55048
// AA12 Mag
Blueprint_5_Type Ammo
Blueprint_5_Supplies 1
Blueprint_5_Supply_0_ID 59741
Blueprint_5_Supply_0_Critical
Blueprint_5_Build 55048
// AA12 Drum
Blueprint_6_Type Ammo
Blueprint_6_Supplies 1
Blueprint_6_Supply_0_ID 59742
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 59743
Blueprint_7_Supply_0_Critical
Blueprint_7_Build 55048