Del-Ton, Model 1 Sales, or ???

[Scoots]

I've found .300 Fireball barrels by Del-Ton and Model 1 Sales:

http://www.del-ton.com/detail.aspx?ID=449

http://www.model1sales.com/item-deta...e=bar16300.gif

Has anyone had any experiences with either company, good or bad?

Does anyone know the thread measurements on the muzzles?

The gas port is standard on either barrel and I’d like to install an adjustable, do you foresee any problems or can add suggestions?

Thanks for your input.