My primary go-to HD gun is my Benelli pump with a mounted flashlight and a mix of buck and slugs. I also keep my S&W Model 10 and Springfield XD40 nearby as well, but given the time, I am going to grab the Benelli first. Lately, though, I've been thinking a lot of consolidating calibers to include a good defensive sidearm and rifle combination for use in short-defensive perimeters. I've concluded that I need a good pistol-caliber carbine (PCC) in .40 to complement the XD40. The problem is that there are so few options available, and what is around is very expensive (with some exceptions like the KelTec but that cost is climbing, too).
Yes, I have EBR's in various calibers and I tote those around quite a bit in outdoor shoots. If I really felt myself in a bind, though, I would rather have a single cailber that would serve both sidearm and rifle duties. Logistics is a big consideration to me. As for available models, the Beretta CX4 and KelTec Sub-2000 come to mind, but really there's not much else out there with the exception of a few lower-rate production models from other manufacturers.
With everyone talking about HD loadouts, most of the focus has been on the AR platform. Nothing wrong with that, of course, and I'm a big fan of EBR's, but for toting around in tight quarters (I live in city limits), I would prefer a PCC and sidearm in the same caliber. With the HK MP5 being one of the most successful PCC's ever -- as well as one of the most popular guns ever made -- I'm surprised that the gun manufacturers haven't produced more models over the years. Instead of more PCC's coming out to complement sidearms, the trend is that more 5.56/.223 pistols are being produced to complement the AR rifles. A pistol of this nature seems a bit unwieldy to me, but then again I haven't shot one, so I'm only supposing on how it would handle.
Well, I guess it's off to Gunbroker.com to find a CX4 or Sub-2K in .40S&W. There's slim pickings out there in .40 and what I do find is $$$$$. Oh well, I suppose it's the age we live in now...