Re: M40a1 build guide
Best bet NOW, if George doesn't have extra's..........is order the steel ONE piece from FN, for the Long action, and grind to fit, and notch it, so the trigger guard will be almost flush, and a good fit.
You will need the entire TG assy.(In Steel, not Alum).......and HFP.( and center screw)for front of TG.
Front of TG will have to be ground at a 45* angle or close, so that the HFP will snap closed...........
This will partially eat into the Center screw hole.........which is not an issue.
Care must be taken to not remove TOO much of the LA HFP.
Or, you will have a sloppy fit, and may have to weld some metal back on to the Front of the HFP, and ground again............
Then finished out to remove weldment marks...............