It looks a lot like an ACI Maverick, which is the same as a PMI Trracer (not a misspell), which is basically the same thing as a Kingman Hammer.
It's basically a cheap Nelson based pump. If you take it apart, you'll be able to see prettymuch everything you need to know about it. I've got a Maverick, and it a fun little marker.
On a personal note, I just got a box from CCM today.
They make such good stuff. The hidden screw trick is sweet.
I liked the huge drop on there when it was a semi, but now I think it's more comfortable without it. As soon as I get my hands on a rail, it's coming off.