I have thought often about how the mass volume of private purchase/unit purchase gear will affect the GWOT collectors. It is certainly not reproduction, as it is period made and combat used gear. It is not, however, official issue. I think it would be near impossible to call oneself a GWOT collector and not accept this type of stuff, as it was used, I'd argue, by the vast majority of troops. Most guys I served with in Iraq had at least one non-issue piece of kit
The military originally turned a blind eye on it, largely. I remember in 2005, we were all issued those horrid LBV's with the permenantly sewn pouches at a terrible angle, that had to be worn over the FLAK. A ton of us went out and bought Blackhawk Industry mag/frag pouches. A few weeks after I spent ridiculous dollars on my own, our unit made a large purchase of them through Blackhawk with unit funds and we all received them as unit issue. And we were required to return them when leaving the unit, they were reissued, and stayed in circulation.
We received our first dump pouches in Iraq in 2005. Another unit issue item purchased outside of official channels, as well as motor cross gloves. No one knew what the heck they were for, and we'd done so many hundreds of mag reload drills with the mag pouches, we were hesitant to accept them. We hung them on our gear because we were told to, but they largely remained rolled up or used to tote around those liter and a half bottles of Haji water.
My holster, leg rig, GP pouch, and 40mm pouch were all private purchase items, as well, that deployment
In 2006, we were told we could buy our own Flaks as long as they weren't plate carriers, but actual flaks, and could accept the kevlar inserts of our intercepters. I wore a Spartan I FLAK on my second deployment, and unissue SWAT boots. And it was covered with non-issue pouches by Blackhawk and Diamondback.
After that deployment, orders started coming down that only issue Flaks and boots could be worn, the Commandant pushed this as part of his intent to stop Marines from spending their own money-the Marine Corps issued everything we needed. This was about the time we started seeing official government issue mag/frag pouches that were obvious copies of the Blackhawk pouches we all were wearing for years. By the time I was in Afghanistan, it was mostly the old salts who were still wearing private purchase stuff from their Iraq days...and this was just what wasn't be issued. Pop-up pouches, admin pouches, etc. The GP were mostly content with their issue stuff and never bought their own
To this day, however, many guys in leadership billets still buy their own admin and GP pouches...pouches we aren't issued.
So, I think the collector has to accept this gear. However, because it is still being made and anyone can buy it and rub dirt on it and call it combat used, I think the future of it as a collectible is going to greatly depend on it being found in a group, coming directly from the source, and photos of it in wear will be great bonuses. Because of this, very little of it will ever likely command high prices