[texpan99]

Could you guys tell me a good place to buy either old parts or repops for this old Colt,, Thanks in advance, Steve

 

[Shooter91]

Texpan99, welcome to the forum! You can try Numrich gun parts. Their website is Firearm Parts & Accessories | Military Surplus | Numrich Gun Parts. Second good place you could try is Jack First Gun Parts. Jack First Gunshop - First in Gun Parts - Rapid City, South Dakota

 

[dfariswheel]

Another source is Coltparts.com

Antique Firearms & Colt Parts for Old Guns

Note that the Army Special uses the same parts as the Official Police. In 1927 Colt changed the name of the Army Special to the Official Police.

Also note the Army Special was introduced in 1908, so don't go by the patent dates on the barrel.
You can date it here:

Serial Number Data

 

[Shooter91]

dfariswheel also found another great source. I forgot about the website he posted. The website is Antique Firearms & Colt Parts for Old Guns. I called colt parts before on a grips for my friends army special. He has lots of parts available for many colts.