The Eagle Light is unlocked at level 16. It's in the 80 damage tier, sporting a decent fire rate and accuracy and stability.
It comes with two universal mags, a receiver, three barrels, a suppressor, and a sight exclusive to it and the Eagle Heavy.
It also has built-in compatibility with Restoration Mod. It's identical to Pawcio's version of the SCAR-16, but the dev branch version specifically so it's slightly worse than the one on main branch.
Appears as the Eagle Heavy to people with Gage Weapon Pack 1, appears as the AMCAR otherwise.