Your revelation R310C western auto shotgun is a Mossberg model 500C which was made by Mossberg and Sons for Western Auto.
Mossberg
The value of a Revelation R310C 20 gauge pump can vary based on its condition, age, and market demand, typically ranging from $150 to $400. This shotgun, often recognized for its reliability and craftsmanship, may attract collectors and hunters alike. For an accurate appraisal, it's best to check local listings, online auctions, or consult a firearms expert.
Western Auto 310-C is made by Mossberg, and is a Model 500 C. Western Auto 310 models follow Mossberg 500 models. A , AB,B,C, & E. Hope this helps. WetDog45@msn.com I just bought a used 310c shotgun in Georgia for $130. It is in in good condition. Is my first firearm. I love it!