Long time lurker, first time poster.
First Q- does anyone know the weight of this barrel? The tech section of the Bushmaster page lists weights for most of their barrels, but not this one, and the page describing it just says lightest one, but no specs.
Second Q- if I order from the factory, can they put a 3 rail gas block on it, or is the barrel diameter too small? Again, per web page it is too small for a home job, but I wasn't sure about what they could do. I think they have better gear at the factory than I have in my basement.