The narrow mag wall on that "Outstanding IP Trigger Housing Group" was still bothering me, so I've gone through all of my Carbine Books the past couple days and finally decided it must be a Type 2 and I missed seeing the beveled lug. Went back and took another look at the pictures - I don't see any bevel, so why the narrow mag wall if it's in fact a Type 3? I must be missing something. Need to go over and check the CC website - hope to find an answer there. - Bob