Here's the reference I was recalling, I think, concerning the DHBP option. It's from Gene Hill's "Shotgunner's Notebook" column in Gun Dog magazine. Unfortunately, I have only a Xerox copy of the article, not the original magazine, so I can't identify the specific issue. But it must have been shortly after the Repros were introduced, because Hill says: "I first saw one last January when Tom Skeuse introduced them at the SHOT Show . . ." Back then, of course, Hill was one of the most influential writers on shotguns, and the article in question is his review of the field test Repro he received. In it he states:
"All the guns have automatic ejectors and the stocks are finished with either a metal skeleton butt plate or solid hard rubber with the classic dog and bird cameo."