CULLMAN, Ala. (CBSDFW.COM/AP) — Country music star Hank Williams Jr. is offering a $6,000 reward for his grandfather’s missing shotgun.

The singer known for hits including “Family Tradition” has posted a letter online saying he spent time growing up in south Alabama with his grandfather.

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The letter says he can’t locate the man’s old Remington Model 11-48 shotgun, which he wants to pass on.

An attorney for Williams, Steve Smith, says the gun is believed to be lost, not stolen. The reward is being offered with no questions asked.

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Smith says the 16-gauge shotgun was likely last seen at a lake cabin or house near Cullman, Alabama. He says the reward offer has generated a few tips.

Williams sang about the man who owned the shotgun in his 1973 song “Grandpa Shepherd.”

The country singer played Dallas in 2018 with Lynyrd Skynyrd during their farewell tour.

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(© Copyright 2018 CBS Broadcasting Inc. All Rights Reserved. The Associated Press contributed to this report.)