Model 12 "trench gun" question

[Boomstick Bruce]

So I've gone over the new rule book more than once looking for an answer to this question and came up with nothing. The old rule book said my (now back up) model 12 wasn't legal with the barrel shroud and bayonet lug installed due to it not being an "original" us military trench gun, but the new rule book says nothing about it soooo.... can I put the aftermarket shroud and bayonet lug back on my "someone made this into a fake trench gun before i bought it" model 12?

Edited 17 hours ago by Boomstick Bruce

[Flying W Ramrod]

Every reference to Shotgun modifications, found in the SHB pg. 18,19, state if found on the original firearm type.

If there was a shroud and/or bayonet lug on an original Model 12, it's acceptable to install a new one.