I saw this awhile ago, but I thought of it again after watching the film "Death Walks at Midnight" which also features a giant metal glove used as the murder weapon. The titular glove in this one, however, is not spiked and is used entirely on male victims who really deserve it, and is wielded by ex-football player turned preacher Rosy Grier. Grier plays an innocent man sent to prison, who takes revenge on the men who sent him there using a stolen "high-tech weapon" (the glove). John Saxon, playing a cop for the thousandth time in his career, is the man who tries to stop him and recover the glove. Both characters are pretty sympathetic and as I recall the films ends happily. That's probably one of the reasons it wasn't very successful and remains pretty obscure today. It lacks any real exploitative elements--the violence is pretty tame and there's no sex or nudity. Even the blaxploitation elements aren't too strong here. But if you're not expecting too much, it's worth a look.
