Sentinel — Greg Walker

DEATH FOR SALE
He has no ideology. He's loyal to no one. Yet he's the deadliest assassin ever to explode upon the free world. A mercenary-terrorist known only as "Sentinel" ... who provides destruction and bloodshed -for a price. Now he's about to burn a path through America- for the biggest payoff of all. But just as this one-man killing machine draws a bead on the land of the free, another man steps right into the cross hairs ....
SPRINGBLADE
Bo Thornton. Vietnam vet. former Special Forces Green Beret. As fast and lethal as the Soviet Spring blade weapon he carries, he's a human fighting machine who cleans up the dirtiest jobs on earth ....