trigger house modifications

[wtmr]

anyone know why the two modifications done to this trigger house? ebay 190636575562 someone can post a link that remembers how-you have to look past the early parts in it to see the mods, one is in side in front of hammer strike area and other thru back of trigger guard--was this a bubba automatic of some kind missing a couple pieces?

WWII M1 Carbine Trigger Housing Complete Marked Q-NL | eBay

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[frankderrico]

wtmr, I see what you mean, about the drilled holes. I don't know what he did that for....Frank

[CrossedCannons]

It sure looks like it was modified at some point to allow fitting of a second sear enabling select fire function. War Baby II has the details of this mod. I believe it's also described in the newsletters but I can't recall the specific issue of the hundreds I've read

[browningautorifle]

That was my guess too. I think it's for one of the trial type or user mod full auto rigs.

[Mikey51]

Could that hole on the left side of the trigger housing be for a plate similar to that shown in Pic 226, bottom of Page 257 Warbaby ? Mike.

[browningautorifle]

That's the sort of thing I suspected.