May be that sooner or later, Crosman will offer the .177 option in a PROD repeater. Right now, they don't. right now, they don't make parts you could swap and come up with a PRod .177 repeater.
Would have to build one, and at least some of the work would be complicated enough to need to be farmed out to professionals. Should be a way to get machine a PROD breech to let MRod mags to work in a PRod (or to sleeve/bush a PROD.22 mag to work in .177). Could then either have a .177 LW barrel made, cut down a .177 MRod barrel, or using a standard barrel and an o-ringed bolt.
Building one could get complicated. May be that Crosm does know something about their magazine feed that I don't, could be that they need that o-ring in the barrel system of a spring-loaded feed magazine to avoid o-ring damage. Other repeaters use an o-ring on the bolt without a problem, but they usually do not use a spring loaded feed (more often, use a mechanical feed that is operated by the bolt).
Othere builders have made an o-ringed bolt work with PRod and MRod mags with no reports of o-rings getting chewed up. Have no ideal if that was by careful adjustment, blind luck, failure to report the problem, or that the o-ringed barrel is just not needed.
Personally...would just wit and see what Crosman comes out with. A .177 repeater version does make sense, and perhaps they'll respond to the demand.
Personally, I prefer single shots. Tossed the PRod mag in the first week and have no idea where it got off to. Bought a 1700 and shrouded it for my .177 version. Built a HiPac conversion/riser breech/ 2250 for a 5mm version. Sooner or later, will make a .25 version and have a quartet.