Ka-boom!
The item id for Easter Bolter 35 in unturned is 6705. You can use this ID with the commands below to spawn the item, give it to a player or buy it on a modded economy server.
Size_X: 1
Size_Y: 2
Size_Z: 0.45
Amount: 35
Count_Min: 35
Count_Max: 35
Calibers: 1
Caliber_0: 6705
Tracer: 55
Spread: 1.15
Range: 3
Player_Damage: 10
Zombie_Damage: 10
Animal_Damage: 10
Barricade_Damage: 15
Structure_Damage: 5
Vehicle_Damage: 15
Resource_Damage: 15
Object_Damage: 15
Explosion: 53
Blueprints: 2
Blueprint_0_Type: Supply
Blueprint_0_Supplies: 2
Blueprint_0_Supply_0_ID: 73
Blueprint_0_Supply_1_ID: 71
Blueprint_0_Supply_0_Amount: 1
Blueprint_0_Supply_1_Amount: 5
Blueprint_0_Level: 1
Blueprint_0_Skill: Cook
Blueprint_0_Build: 27
Blueprint_0_Product: 6637
Blueprint_0_Map: Easter
Blueprint_1_Type: Ammo
Blueprint_1_Supplies: 1
Blueprint_1_Supply_0_ID: 6705
Blueprint_1_Build: 30
Blueprint_1_Map: Easter