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.
RevolverOVPR.dat
GUID 7ff7e6da53bd401ab000d2de0bfb7ed0
Type Magazine
Rarity Epic
ID 52265
Size_X 1
Size_Y 1
Size_Z 0.12
Amount 6
Count_Min 2
Count_Max 5
Calibers 1
Caliber_0 51003
Tracer 51000
Blueprints 4
Blueprint_0_Type Ammo
Blueprint_0_Supplies 1
Blueprint_0_Supply_0_ID 52265
Blueprint_0_Build 30
Blueprint_1_Type Ammo
Blueprint_1_Supplies 1
Blueprint_1_Supply_0_ID 52085
Blueprint_1_Build 30
Blueprint_2_Type Ammo
Blueprint_2_Supplies 1
Blueprint_2_Supply_0_ID 52086
Blueprint_2_Build 30
Blueprint_3_Type Ammo
Blueprint_3_Supplies 1
Blueprint_3_Supply_0_ID 52087
Blueprint_3_Build 30
Firerate -4
Ballistic_Damage_Multiplier 1.2
Spread 0.75
Recoil_X 1.5
Recoil_Y 1.5