Barrel Threads

[The Wizard]

Doese anyone know what the threads are on a USFA SAA?

[mike454]

I was told by USFA that they used the same threads as 1st and 2nd gen Colts. Not sure what those might be though.

[RRio]

1st Gen - .695-20  tapered tpi

2nd Gen - .695-20 tapered tpi

3rd Gen - .695-24 nontapered tpi

[Virginia Gentleman]

In fact, I restored an older Colt 1st gen in 45 Colt with a USFA barrel that was polished and re-roll marked as Colt. We replaced a few small parts and screws with USFA parts and they fit almost perfectly with very little fitting.  The grove diameter in the new barrel was .452" not the .454" like the original, but it is a "restored shooter" but accurately restored otherwise. The gun shoots very well with this set up.  We also replaced the cylinder with a 2nd gen that was reamed out from .357 to .45 Colt so it was done to proper spec.  People have offered me crazy money for it even after I told them it was a restored Colt.