M2 Tactical

So to increase I would have to buy a 4 shot extension? Or could I also use a 2 shot extension then giveing me 2 over the stick configuration. I am not clear on this. Thanks

Where can I buy Tritium Inserts for the M2 Tactical Ghost Rings?

Tube extension to a Pistol grip M-2 tactical any leads on where they are? Is the M-2 really new? When was it introduced?

Is it ok in California to add Tube extension to a Pistol grip M-2 tactical?

Hi Want to know if a longer barrel is available. And from where? Thanks