According to the thread on CPF:
“The rifle uses a custom Moddoolar head with L1N/XPG engine, on a ZRS body/tail (one cell).”
So yeah… its a triple XPG or XPG2 custom-made by Overready.
anybody know what they use in captain america the first avenger when they find him frozen?
A little out-topic but there is a wonderful database for firearms in movie/tv/games at : Internet Movie Firearms Database - Guns in Movies, TV and Video Games
Unfortunately flashlights are not popular enough for a similar database.