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.
545_6L31_60rnd_Magazine.dat
GUID 8f32e048d50641949994169f7b538599
Type Magazine
Rarity Legendary
ID 35391
Size_X 1
Size_Y 2
Size_Z 0.275
Amount 60
Count_Min 18
Count_Max 60
Equipable_Movement_Speed_Multiplier 1
Aim_Duration_Multiplier 1.25
Speed 0.8
Calibers 1
Caliber_0 35015
Tracer 48
Blueprints 14
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 119
Blueprint_0_Build 30
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 35023
Blueprint_1_Build 30
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 35389
Blueprint_2_Build 30
Blueprint_3_Type Ammo
Blueprint_3_Supplies 1
Blueprint_3_Supply_0_ID 35386
Blueprint_3_Build 30
Blueprint_4_Type Ammo
Blueprint_4_Supplies 1
Blueprint_4_Supply_0_ID 35387
Blueprint_4_Build 30
Blueprint_5_Type Ammo
Blueprint_5_Supplies 1
Blueprint_5_Supply_0_ID 35388
Blueprint_5_Build 30
Blueprint_6_Type Ammo
Blueprint_6_Supplies 1
Blueprint_6_Supply_0_ID 35390
Blueprint_6_Build 30
Blueprint_7_Type Ammo
Blueprint_7_Supplies 1
Blueprint_7_Supply_0_ID 35391
Blueprint_7_Build 30
Blueprint_8_Type Ammo
Blueprint_8_Supplies 1
Blueprint_8_Supply_0_ID 35384
Blueprint_8_Build 30
Blueprint_9_Type Ammo
Blueprint_9_Supplies 1
Blueprint_9_Supply_0_ID 35879
Blueprint_9_Build 30
Blueprint_10_Type Ammo
Blueprint_10_Supplies 1
Blueprint_10_Supply_0_ID 35385
Blueprint_10_Build 30
Blueprint_11_Type Ammo
Blueprint_11_Supplies 1
Blueprint_11_Supply_0_ID 35392
Blueprint_11_Build 30
Blueprint_12_Type Ammo
Blueprint_12_Supplies 1
Blueprint_12_Supply_0_ID 35383
Blueprint_12_Build 30
Blueprint_13_Type Ammo
Blueprint_13_Supplies 1
Blueprint_13_Supply_0_ID 37620
Blueprint_13_Build 30
Use_Auto_Icon_Measurements False