Question

he tucked his gun ____his arm

Answer 1

he tucked his gun from his arm

might be correct.

Answer 2

Afterward, she lay in bed, tucked heartily under the spreads as his boots clicked far from her on the hardwood floor - down the lobby and into the sanctum.

Coming back to her assigned room, she draped all her garments in the cedar lined closet and tucked her personals in the open dresser.

He directed his concentration toward the flame and tucked another bit of bark into the brilliant coals.