These are the jerseys the Astros wore at home and on the road from 1975-1979. Other than the rainbow-looking jerseys, there was a unique feature on these uniforms.

The Astros are free to keep the gun on their throwback Colt .45s jerseys after all. The team's having a choice in the matter is an about-face from Major League Baseball, which decreed the Astros ...

In their first ever regular season game, the Houston Colt .45s defeated the Chicago Cubs, 11-2. 1975-79 The Astros came out with a radical new uniform, later referred to as the "rainbow" jerseys.

Houston Astros On December 1, 1964, the team announced the name change from Colt .45s to Astros. The name change was to honor Houston's new position as the center of the nation's space program.

Colt .45s (1962-64): One of only three teams at the time that had chain-stitched, embroidered logos. Original full uniforms in recent years have sold for as much as $20,000.

1965 was a big year for the Astros. They moved into the then-brand new Astrodome, and they changed names from the Houston Colt .45s.

Before they were the Houston Astros, the baseball team based in Houston was the Colt .45's. The team had a great name and a great logo.

The Astros, who were founded in 1962 as the Colt .45s, are selling merchandise with the new patch now.

As a note, we’re only ranking Astros logos and not any of them when they were originally known as Colt .45s, which wouldn’t have made it anyway.

Breaking: Jim Crane announced today Astros will wear authentic Colt 45s jersey April 10 & 20. “The fans have spoken” — Houston Astros (@astros) March 9, 2012 Now, if this sets a precedent in which the ...

The Houston Astros' plan to pay tribute to their roots by wearing throwback uniforms with a smoking Colt .45 across the chest is back on, after Major League Baseball dropped its objections. Nobody ...