Trademarkia.com, the "Rhino-Fire" name has been trademarked for Hasbro as a "Toy dart shooter and foam toy darts for use therewith".
On Thursday, February 20, 2014, a U.S. federal trademark registration was filed for RHINO-FIRE by Hasbro, Inc., Pawtucket, RI 02862. The USPTO has given the RHINO-FIRE trademark serial number of 86198748. The current federal status of this trademark filing is NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER. The correspondent listed for RHINO-FIRE is HASBRO, INC. of HASBRO, INC., 1027 NEWPORT AVENUE, PAWTUCKET, RI 02862 . The RHINO-FIRE trademark is filed in the category of Toys and Sporting Goods Products . The description provided to the USPTO for RHINO-FIRE is Toy dart shooters and foam toy darts for use therewith.
No pictures or other information, obviously... but I wouldn't expect something with the name "Rhino" to be a small pea-shooter blaster. The old Max Force lineup had some animal names for blasters, but I don't expect those making a comeback. In any case: speculate!