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.
GM6 Mag.dat
GUID 302c706a8c8ba42070c565aeac2cf1a4
Type Magazine
Rarity Legendary
ID 58232
Size_X 1
Size_Y 1
Size_Z 0.3
Amount 5
Count_Min 3
Count_Max 5
Calibers 1
Caliber_0 56040
Spread 1
Shake 1.1
Recoil_X 1.7
Recoil_Y 1.5
Equipable_Movement_Speed_Multiplier 0.995
Tracer 48
Explosion 55073
Explosive
Blueprints 2
// Belt
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 58359
Blueprint_0_Build 55048
// Lynx mag
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 58232
Blueprint_1_Build 55048
// OSV mag
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 58241
Blueprint_2_Supply_0_Critical
Blueprint_2_Build 55048