KBUC (102.1 FM) is a radio station broadcasting a tejano music format.^[2] Licensed to Raymondville, Texas, United States, the station serves the McAllen-Brownsville-Harlingen and Reynosa-Matamoros border area. The station is owned by Grupo Multimedios, through licensee Leading Media Group Corp. The station has obtained a construction permit from the FCC for a power increase to 37,000 watts.^[3] KBUC also served as the flagship station for the Rio Grande Valley Killer Bees. KBUC formerly broadcast a country music format but flipped on August 15, 2011, at 5:00 p.m.

The Federal Communications Commission issued a construction permit for the station to Sendero Multimedia, Inc. on December 15, 1980.^[4] The station was assigned the call sign KSOX-FM on November 16, 1981, and received its license to cover on April 21, 1983.^[5] On April 22, 1994, the station changed its call sign to KILM. The station's license and that of Mirando City, Texas-based KBDR were assigned by Sendero on April 3, 2003, to R Communications, LLC at a purchase price of $8,000,000.^[6][7] The station once more changed its call sign on January 19, 2005, to KTFM, on January 26, 2005, to KLEY-FM, and on February 2, 2005, to the current KBUC.^[8]

R Communications sold KBUC and three sister stations to Grupo Multimedios effective February 10, 2021, for $6 million.

• Facility details for Facility ID 740179 (KBUC) in the FCC Licensing and Management System
• KBUC in Nielsen Audio's FM station database