from the "Lawdog"
I know that Texas doesn't have a lock on court  guns, or their kissin' cousin, the BBQ gun, but someone always asks me  what they are.
Unfortunately, I'm afraid they're a dying breed. At least in this part  of the country. Back in West Texas every lawman worth his salt has a  court gun. Around here, everyone has gone to polymer framed pistols, and  I'm here to tell you, ain't no way this side of the Styx than you can  turn a Glock into a court gun.
Sorry, ain't gonna happen. It is technically, physically and  aesthetically impossible.
So, down to brass tacks.
A court gun is the pistol that you wear during your court-type duties.
Usually a Colt Government Model or clone or a Browning Hi-Power,  although any metal pistol with removable grips will do. Either blued or  stainless is just fine, and have a small amount of tasteful engraving  done to the slide.
Replace the grips with burlwood or stag. Fancy wood is acceptable, and  can be minimally engraved. Understatement is the word of the day here.
The gun leather for your court gun should be dark in colour, with the  classic basketweave pattern and a Ranger buckle. A subdued floral or  Celtic pattern is acceptable, as long as the leather engraving is not a  different color from the rest of the belt. In the past, the best gear  was custom-made by inmates of the Texas Department of Criminal Justice,  but I don't know if they're still doing that.
Some philistines have asked about nylon carry gear, or -- God forbid --  kydex. The only stuff good enough for a 'court gun' is leather. Period.  Full stop. And for God's sake, don't have your name engraved on the back  of the belt. That's just...just...tacky.
For accessories, consider one open-topped magazine pouch and a  belt-mounted badge. Polish your boots, press your jeans and wear a  starched long-sleeve shirt.
Now, a BBQ gun is a whole different animal. A BBQ gun is what you wear  to barbeques, baby christenings, formal balls, and any other place where  a fancy jacket or outfit would be worn.
Get your paws on a revolver. Smith & Wesson or Colt would be best,  although I understand that Brazilian products are becoming accepted.  Polished stainless at a minimum, and full-blown nickle is a better. And  pony up for full engraving. Have the trigger, hammer, screws and  ejection rod anodized blue, gold, or colour-case-hardened for the  traditionalists.
Now, look in the mirror. Is your mustache over 50% grey? If so, go for  pearl grips. 49% or less on the grey-meter, and you'd best stick with  ivory. If you go for mother-of-pearl, have it carved or inlaid. Steer  heads are a classic pattern, although badges and stars are always safe.
If you go the ivory option, have the ivory inlaid or scrimshawed. Floral  patterns involving roses and the Texas flag are good, as well as the  state of Texas, a tasteful rendition of a young lady, or long horn  cattle. Any scene from the battle of the Alamo is a surefire crowd  pleaser. For those souls living outside the Great State of Texas, the  flag raising at Mt. Suribachi may be substituted for an Alamo scene, and  anything involving Marines is acceptable engraving material.
I would advise that you stay away from morbid or dreary themes in your  engraving -- unless it is extremely well done.
The leather for your BBQ gun should be of a floral pattern, with the  engraving a different color than the rest of the leather. The engraving  pattern should extend to the buckle and any other metal hardware which  should consist of silver and be polished bright enough to shave in,  although gold is acceptable if carried with the proper attitude.
Accessories should be limited to a reload and a pocket watch.
No BBQ outfit is really complete without hand-made boots made from the  hide of a critter that is guaranteed to send your local PETA petter into  orbit. Pressed jeans under a Western-cut jacket, with a bolo tie, and a  black Stetson complete the ensemble. The bolo tie should have a chunk  of rock slightly larger than a baby's fist and the Stetson should have a  hat band made from the cousin of the critter on your feet. 
For some of the best examples of court and BBQ guns around, I strongly  recommend visiting the Texas Ranger Museum in Waco, Texas.
LawDog