Its not exactly clearly defined what a "build" or "custom" means. My 2 cents:
"Rig" or "customised": no machining involved, eg factory barreled action into chassis, new trigger and muzzle brake on already threaded barrel. Includes prefit barrels.
"Build" or "custom": metal had to be removed. Pretty much requires chambering a new barrel or threading on a new brake.
"Rig" or "customised": no machining involved, eg factory barreled action into chassis, new trigger and muzzle brake on already threaded barrel. Includes prefit barrels.
"Build" or "custom": metal had to be removed. Pretty much requires chambering a new barrel or threading on a new brake.




















































