I'm really pulled toward the 1301 Tactical for the feature set it comes with as standard as opposed to what is required to upgrade the Benelli M4, plus, of course, the price is better. Am I correct in understanding that: 1) The Gen 2 Bolt Release lever and operation takes cares of concerns with the Gen 1 operation in which it was possible to get a double feed and effectively lock up the shotgun? 2) Is the bolt release on the Gen 2 not metal, instead of plastic? 3) Is the pic rail now aluminum instead of plastic? 4) Aftermarket options are available to increase capacity from 6+1 to 7+1 or even 9 with carrier loading? 5) I'm a bit unclear on the various models available? Is the Gen 2 in Black with shorter LOP stock a 6+1 capacity with an 18" barrel or a 18.5" barrel? It seems the price on it is the lowest, but I'm concerned about capacity and aftermarket install of a +2 mag tube? Thanks for any other information that may be available? I'm looking at this particular model: J13T18NLE Gen 2 It looks to be around $900. Then there is this model: J131T18C and it appears to be about $100 or so more.