Looks to me like a recast of an Icons replica, or maaaybe Icons prototype. That square short back end of the 'Icons' replica and its bulky barrel vent is what influenced the snow wolf/evike/G&P airsoft kits. Unlike the airsoft ones, the Icons had a reasonably proportioned magazine portion of the shroud, which that does appear to have.
The only thing that doesn't scream "icons" is the missing GL grip. I was under the impression the Icons rifle was static and that part was not removable.
A bit of a mystery there, but I don't see any scenario where that is screen used.
**EDIT** it absolutely has to be a cast of the Icons. The Icons had a little '20th century fox' plate glued to the bottom of the magazine. You can see in that re-cast that there is a weird plate on the bottom in the casting as if it was glued on after (like the Icons). Also look at that barrel/vent and the stock position. below are photos of the icons. They match in pretty much every way.
Seems like someone put in the effort to replace the barrels with metal and 'finish' the GL details. A real fan for sure. Not sure how it was ever passed as screen used tho.
Attachment:
Icons Pulse Rifle.jpg [ 73.37 KiB | Viewed 1860 times ]
Attachment:
IconsPulseRifle1b.jpg [ 78.84 KiB | Viewed 1860 times ]