I ordered the Ka-Bar pack despite the fact that I have a strong aversion towards fanny packs in general. In truth I was more interested in the Ka-bar's cellphone capabilities courtesy of my new mongo-sized Android Droid Charge than for its holstering ability, since I'm usually more than satisfied with wearing my pistols in a belt scabbard most of the times anyways. But even I admit that there are times that being even more discrete has its benefits, both for myself and for others around me that may feel uncomfortable or threatened by any inkling of a firearm, which is never my intention in carrying a handgun. The Ka-Bar seemed to address both of these needs from what I could glean from its product page, so I ordered it up.
Now that I've worn it for several days I have to say that it's been a success, albeit a somewhat guarded one. The Droid Charge is a challenge to fit in the outer zippered pocket even when the gun compartment is empty; it become an unearthly struggle to get the DC in when a firearm is already stowed. Sometimes bigger really isn't better, and I have to wonder why I thought this Samsung phone was such a good choice. But I'm digressing...
The Ka-Bar handles all of my compact and smaller sidearms with relative ease, though larger 'compacts' like my SIG P228 and P229, Glock 19 and HK P30 are something of a tight fit. Their relative length makes positioning of the Ka-Bar along the waistline fairly important if comfort is a priority. All that said, I wear my pack at about the 1:30 position and it works well for general access. I'm thankful for the two extra Velcro-captured pouches, however, since in this position I can no longer carry my Benchmade Pardue knife in my right front pocket. Instead it fits nicely if a bit snugly in the forward-most pouch, where a small Streamlight flashlight resides in the rearward one. Either of these pouches could also be used to carry additional magazines as well, as long as they're are small enough to fit.
As for the main pouch assembly, I use the exposed netted pocket for keeping a set of earbuds; even if I don't use them it adds to the illusion that this is really just a slender fanny pack for electronics. My rear-cased, front screen protected Droid Charge (barely) fits vertically into zippered compartment immediately behind the netted pocket, though it does take some finagling to get the upper flap over the phone and to zip it closed. I can also just stuff the phone into the pocket with a portion of it (stiffly) hanging out; this too creates the illusion that the Ka-Bar is a gadget pack. As for the main carry compartment, it works fine with my current good weather (re: less clothing) pistol of choice, my M&P 9c, though with an X-Grip sleeved 17-round mag in the magwell it does get a bit tight. Access is easy for a zippered carry solution, more convenient and far less cumbersome than using a carry bag like a Maxpedition Jumbo Versipack. For me a simple extra long t-shirt is enough to conceal the assembly, and is far more successful at concealment than with the scabbard which sometimes prints the outline of the gun and holster through that same shirt.
As usual I changed out the zipper pulls for paracord ones to silence the clinking racket that so annoys me about fanny packs and other tote-along storage gear in general. The paracord pulls also make it easier for me to find the pulls when accessing, since I intentionally cut them with extra length for exactly that purpose. All in all I'm quite pleased by the Ka-Bar. I like that it allows me to thread my belt into the two loops attached in back so it doesn't droop like traditional fanny packs. It doesn't scream 'gun'; if anything it says 'diabetes supplies', and to me that says it all. Now if it holds up over time--which we will definitely see since it's going to get plenty of use this summer--it will be just about perfect, even if I still don't care for the fanny pack-cliche webbed waist belt and plastic buckle (which would've been great had they sized them so that they could actually thread through the typical belt loops of men's pants and jeans).
*UPDATE*: I've started to carry my Glock 23 in my Ka-Bar and it actually does work and fit quite well. The Benchmade has moved to the rearward pouch next to the flashlight, and a second factory mag loaded up with .40SW JHPs resides in the front one, easy for my off hand to access and to ultimately get into the pistol should the zombies REALLY come on thickly. I've also noticed that as the nylon of the Ka-Bar has stretched and softened it does seem to print the outline of the gun grip more readily whenever my Droid Charge is not in the pack. Now whether a casual observer can actually discern this line as a gun is debatable; I think I see it mostly due to the fact that I know there's indeed a pistol within this pack. Overall I'm still very satisfied with the Ka-Bar's performance and would not hesitate in recommending this to anyone interested in a non-threatening method of achieving concealed carry.