UPDATE:
-added standard FDE color(as original textron had that two-tone theme)
-added version with moving parts as separated mesh(mostly usefull for VR games)
Textron entry rifle to US Army NGSW program that aim to replace AR platform. It use fancy new 6.7mm telescoped cartridge made from polymers and weird moving chamber. Of course NGSW program is still running, and beside Textron rifle there is also more classic SIG MCX Spear and Bullpup Beretta RM277 GD that you can find here: https://www.cgtrader.com/3d-models/military/gun/beretta-rm277-gd-ngsw There is no winner yet, and still its not certain if Textron rifle will actually look like that due to being still in development stage, but that version is one of latest I could find.
As for model it self, it is rigged and it have two PBR materials in 4K + black version and dirty FDE.
Made in Blender.