Trigger pull. No4 MK1*

[browningautorifle]

So how would you thin that space or does it require new trigger parts

I have one here that had this problem and I used a wood chisel to slowly remove thin amounts until the trigger guard went into place correctly. I took it off the bottom not the inside. I put the wood on, turned it upside down and slowly removed, testing every couple of passes until the two stage returned. You may have to take some off the full length of the sides too. Both sides of the mag opening. That whole assembly has to lie flat.