I don't know the most about shotguns, but I have a 1300 Defender.
I like it. it's holds 7 rounds (2-3/4") in the tube & 1 in the chamber.
so, you really don't need an extension with that many, but you could.
It's reliable as any other model out there, it's cheaper, why would these other guys want to spend more ? ?
I'm getting a advanced technologies 6 pos. pistol grip stock for it. & heat sheild w/ ghost ring & front sight. mine is an older one with no front sight (just a bead).
I have a Tasco red dot on it right now, w/ a saddle mount it, you could put a Eotech on it i guess.
Most aftermarket stuff is usually good for the 870, 590 or the 1300 anyways.
So, I say go for the 1300. it's only less tha $400 inc. taxes. how can you beat that ?
I don't think they're really any better than the others?
if they are, can some one explain to me why they are ?
I should have mine finished within a week or so, i'll post a pic.