Cold Barrel Zero by Matthew Quirk
Trade-size paperback in excellent condition.
Cover price is $22.99, asking $5.00.
From the back cover:
John Hayes is a Special Operations legend who's gone rogue on a deep-cover mission and betrayed his own soldiers. Disgraced and on the run, he returns to the United States, determined to take revenge on his accusers with a series of devastating attacks.
Thomas Byrne fought alongside Hayes years ago as a combat medic, but he gave up the gun. Now a surgeon, he moves from town to town, trying to forget his past - until he is called upon by the government to help capture the man he once called a friend.
Hayes and Byrne used to be as close as brothers, but when the fate of the nation hangs in the balance, both men must decide whom to trust . . . and whom to betray.
