Spec's on Sig 1911 barrel bushing

[wcoastpi]

I have a Sig 1911 TTT

Does anyone know the bushing size for upgrade?
Was thinking about trying a Briley spherical bushing. The drop in come in different sizes for full size gov. .578 thru .582

No specs listed in Sig book or on their web site. No contact email address listed on Sig website.

Any help or insight on the Briley bushing appreciated.

[redcliff]

You generally need to measure your particular slide opening and barrel when ordering match bushings as the dimensions often vary a small amount from pistol to pistol and you're dealing with a fit that's measured to 1 thousandth of an inch. An inexpensive dial or digital caliper usually works fine.