Coverts were standard R9 production guns which Agrego's Gun & Pawn sent to Bill Wilson to be converted to their "COVERT" model. The deep "COVERT" engraving on the slide was done by Wilson, not by Rohrbaugh. That was never a Rohrbaugh model, the covert, although we ended up servicing them anyway to do the right thing. Looking at this "SF" in question here. . . . . I would NEVER HAVE let that go out like that with a silver recoil system! NEVER. . . . So, buyer beware on this R9 "Special Forces" model being sold. Also, the end cap for the outer recoil spring on a real SF was also black. Now in fairness, many folks would order replacement recoil systems for their R9 pistols, however, Maria would always ask if it was silver or a black unit. . . . I built a few all black units for sale as replacements, but literally only about 5 or 6 of those went out the door. Still ~ Buyer beware on this one. Just saying............