It’s a reference to a scene from the ping pong animation, where one of the characters (Kong Wenge) sings ‘Hitori Bocchi no Christmas Eve’. You can see here at 1:02 https://youtu.be/8i93vXUKqnI?si=B0JyPaPttL5HXSrA
I honestly forgot how long ago the Anson thing was. I guess it takes some more time to find a way to rebrand her if they even plan on using the design for something.
While it may be hard to tell the difference between a FAL and a G3 at first sight, the former has a stumpier front sight and a longer barrel while the latter has a taller front sight and shorter barrel.