The letters "SC" in the logo on the butt stand for "Showcase" cues.
It is a Showcase Buster break cue (probably from the early-to-mid 2000s). They called their line of break cue "The Buster™", and their line of jump cues, "The Jumpster™"
I don't know the model of your cue, and I'm not sure they were ever cataloged.
They sold new for somewhere around $100 in the 1980s, and then somewhere between $200 and $300 in their more recent years.
The company is "Showcase Billiards, Inc.", owned by Clay Etheridge (with co-owner Bob Fekete) and they were based out of Westminster Colorado. I think it was founded in 1978.
Apparently Clay learned how to make cues from Bob Meucci (of Meucci Cues).
Clay made the earliest Showcase cues (marked with a block-style letter "S"). Later, he hired Ernie Martinez, a cue repair tech and machinist to make Showcase cues. Ernie's Showcase cues are marked with a letter "S" inside of a diamond at the top of the joint screw. After Ernie went out on his own in the mid-1990s, they were made by Gale Clark (marked with an italicized "S" on the butt cap.
Your cue was either made by Clay's son, Mike Etheridge, probably in the late 1990s, or Bruce Ryan, probably in the early 2000s. Showcase cues made by Etheridge or Ryan have the logo with the small letter "s" inside of a larger letter "C".
The company (as it was back then) closed up shop in the spring of 2009.