MLB Jersey & Cap History
Astros never shy about showing their colors
Defunct - Houston Colt 45s Baseball Throw Pillow for Sale by EwaldWunsch
Astros will don retro jerseys after MLB drops gun control bid
Astros to keep pistol on Colt .45s jersey
More info on Colt .45s jerseys on sale to the public, plus thoughts on old ballparks: Charming? Or a “dump”?, by MLB.com/blogs
When Guns on Jerseys Are Outlawed, Only the Outlaw Jerseys Will Have Guns (or something like that)
Astros to bring backs Colt .45s jersey this season - Ballpark Digest
Bitter beginnings: The untold story of how the Rangers-Astros rivalry was born
Astros take Game 7 vs. Dodgers, win first World Series
1962-64 Houston Colt .45's Game Worn Jersey. Fantastic vintage, Lot #64125
Sanity has Won: Astros keep the pistol of the Colt .45s uniform. : r/ baseball