Horn 4: Ultimate Weapon by Ben Sloane

Horn 4
Ultimate Weapon
by Ben Sloane (Stephen R. Cox)
1991 Gold Eagle / Worldwide Library

A black market engineer creates a droid body controlled by the brain and spinal column pulled from unwilling victims, planning to unleash them as unstoppable killing machines at the United Nations. Horn, his partner Winger, and their informant Dartt are on the case.

Very little action - the ending was wrapped up way to quickly with an EMP weapon. The setting felt like 1990 America but with high tech. Horn gets a bionic eye and an upgraded targeting system, and there's a theme that he fears this might make killing too easy and take away his humanity, which shows how much the series has softened since the first brutal installment.

Paperback from Amazon