It's a Stryfe PDW with "stock" color scheme. Added another NERF rail to the front of the Stryfe, using an old N-Strike red light. Also added a little detachable LED light.
I really like how it looks with thicker front end and the LED attached - it just looks "meaner" and more intimidating to me.
Also added a single point sling mount to the back of the Stryfe using an old Recon CS-6 stock adapter.