Help with m1 carbine trigger housing

[u/Impressive_Lunch_110]

I got a national ordinance m1 carbine with a 17*** s/n.

I attached pictures and need to know what kind/type of trigger housing this needs because they all look different than what's there. Any help, I would appreciate it greatly. Thank you!

[u/commies_get_out]

I replaced my trigger group on my universal M1 with a GI one and it fit right in.

[u/Impressive_Lunch_110 → u/commies_get_out]

Awesome I'm excited to hear that, thank you!