Some of the advantages include:
A one piece design, no transition for spring/follower/shells to hang up, won’t come loose, captured spring.
Personally I prefer a plus 1 extension. This keeps the weight down and I like the light adapter location.
Are you loyal to the constitution or the “institution”?
TacOrd RMR mount and LPA steel sight with plain black ghost ring. If LPA offered replacement apertures I'd have stuck with the plastic rear. LPA should offer the sight with an aluminum body. The LPA screws have quite a bit more thread engagement than the OEM Beretta screws, probably 50% more. They torque just below flush inside the receiver.
You absolutely can with the factory 7 shot. I do not understand why people think you cannot.
I’ll ask Ben to post some photos of it, I don’t have one personally yet.
There is no major issue with the Nordic or any other +2, the factory tube is better because it’s one piece and retains the mag spring when you take the gun apart.
Used to make pasta, now I make waffles.
It comes apart just like any other shotgun I have with a 5 rnd. tube and extension...unscrew the extension (in the case of the one-piece tube 1301, it's the tube's outer cover), remove the handguard, then slide the barrel off. On the one-piece 7 rnd. 1301, you just have to slide the barrel a little further to get it off than you would if it was a 5 rnd. tube.
Why would the factory magazine tube cover be less susceptible to loosening than the Nordic extension? Both screw to the magazine tube and both engage the detent on the handguard. The factory magazine clamp on my gun started sliding under recoil immediately and no amount of tightening would stop it. All of the Nordic extension clamps slide around too.