Taurus is showing the Defender 856 family of three inch round butt sixshooters. New at SHOT? New to me, anyhow.
https://www.taurususa.com/firearms/r...-defender-856/
Now I know we are generally disdainful of Taurus firearms, so just think of this as something to work on your carry and draw with while you wait for your custom gunsmith to get around to sawing off that police tradein M64 fore and aft.
Note that there is a lightweight model at 16 ounces; shades of the M13 Aircrewman.