Taurus only makes 2 guns in the USA If I recall is is the T32 and one of those pop up barrel Berreta clones in 22 lr
Regardless, Yes they have lifetime warranty but that is how long you wait to get your gun back from them
With so many small pocket, back up guns available IMHO there are far better ones. Heck even the lowly Kel Tec in 32 or 380 is made here and they have great customer service, They will either send you the parts (the firing pin spring ejector are all held in with the Franken (outside bolt) easy to replace the whole guts. Or if you send it they pay the shipping Taurus does NOT. If you have to send a gun to Taurus that is $50 or more for a $200 gun.
I would buy the KT over the Taurus.( I did and then Ruger made a better one)
Narrow it down, What caliber and do you want a semi or a alloy revolver. The semis are flat and easy to hide. But some guys just like revolvers. A 380 has about as good a ballistics as a regular 38 special. Not going to get into a ballistic battle.

For a back up it's get off me. Either will work.
The North American Guardian is a true double strike and works every time it is solid stainless so it is heavy. The Seecamp 32 is tiny and it works every time but expensive,
Go here and on the right click the pdf chart which shows the size and weight of most Mouse Guns
L.W. Seecamp Co., Inc. - Frequently Asked Questions