For example:
#1-100 of The Destroyer (better known as the stories on which the Remo Williams movie was based)
#1-150+ of Lone Star, by Wesley Ellis
#1-320+ of Longarm, by Tabor Evans
#1-300+ of Mack Bolan: The Executioner (A Vietnam veteran's family is murdered by the Mafia and he becomes a one man revenge squad, hunting down and killing anyone who has anything to do with organized crime. Sound familiar?) Plus at least another hundred volumes of "Mack Bolan: Stony Man" and another fifty of "Mack Bolan Adventures"
#1-30+ of Phoenix Force
Several dozen Zane Grey westerns
The first dozen or so Spencer novels by Robert Parker
The entire Badge of Honor series by W.E.B. Griffin, plus several of his other novels.
Several hundred miscellaneous action/adventures, westerns, and mysteries, including a few dozen shorter action/adventure series.
Before I go any further, let me explain that every month when we get in our regular shipment of monthly Harlequin & Silhouette romance novels, a few of us look over them and have a "worst titles" contest. So far, the reigning champions are "Bargain Basement Baby", "Cowboy for Christmas", and the subseries "The Wrong Bed." Modern detective mysteries are as bad; chock full of awful, painful puns. We don't have/get much in the way of men's adventure at the library--I guess it's just not as popular in and of itself anymore as it might have been in the 70's--but I now see that those titles can sink as far as the monthly romance titles.
One title that caught my eye and made me do a double-take was Hardman #4: Pimp for the Dead. You read that right, Hardman #4: Pimp for the Dead. That sounds like the sort of thing
Oh, the hurting. Make it stop...
Feudalism: Serf & Turf