A Parker County man has been arrested after his 4-year-old son shot himself in the leg.

Joshua Daniel Plumlee (Parker County Sheriff's Office)

Deputies were called to Palo Pinto General Hospital in Mineral Wells, where the boy was being treated on the morning of April 21. He had a gunshot wound to his left calf.

The boy's father, 35-year-old Joshua Daniel Plumlee, told authorities that he and his children were in a bedroom at a home on Young Road in Millsap, about 40 miles west of Fort Worth.

He said that he had placed a holstered .36-caliber black powder revolver on a nightstand, then turned around, according to authorities. Soon after, he heard a shot and turned to see the 4-year-old sitting on the bed with the gun in his lap and blood running down his leg.

A 6-year-old boy was also in the room but was not injured.

Plumlee told authorities that both of his sons were allowed to handle the gun and had been taught "how to operate it as a form of gun safety," the Parker County Sheriff's Office said in a news release.

The 4-year-old was released from the hospital the next day and is expected to make a full recovery, authorities said.

"We are fortunate that the bullet missed all major arteries, and there were no broken bones," Sheriff Larry Fowler said in a prepared statement. "Proper gun safety education is essential when owning any weapon but is particularly crucial in homes where children reside."

Plumlee, who plays bass in the country rock band 50thick, was arrested Tuesday on one count of making a firearm accessible to a child resulting in death or serious bodily injury. He was being held at the Parker County jail, with bail set at $2,000.

Plumlee's wife was thought to be in the shower at the time of the incident and will not face charges, the sheriff's office said.