Just a lockframe change won't keep the alphabet boys happy.
Just like the 1919 make the SA sear wider with a wider sear track in the bolt. Also cut a clearance spot on the bottom of the bolt so the semi trigger can't hit. that lets the semi sear be 20 thou shorter and gives that extra room to the semi trigger bar. Now, even a modified FA lockframe will not work.
Put denial islands in the right side plate. Bit of a problem as one cannot be where the return spring is located - its already cut as deep as possible here. That means one island will have to go where the side sear trip is. This sear will need to be modified also.
If you are not aware, the ANM2 can trip the sear from both bottom and side. This design uses the bottom. There will be no opening in the side plate to get at the right side sear trip.
There are two good reasons we have not seen an approved design for the ANM2. The market is too small and the required mods are not that easy.
Just like the 1919 make the SA sear wider with a wider sear track in the bolt. Also cut a clearance spot on the bottom of the bolt so the semi trigger can't hit. that lets the semi sear be 20 thou shorter and gives that extra room to the semi trigger bar. Now, even a modified FA lockframe will not work.
Put denial islands in the right side plate. Bit of a problem as one cannot be where the return spring is located - its already cut as deep as possible here. That means one island will have to go where the side sear trip is. This sear will need to be modified also.
If you are not aware, the ANM2 can trip the sear from both bottom and side. This design uses the bottom. There will be no opening in the side plate to get at the right side sear trip.
There are two good reasons we have not seen an approved design for the ANM2. The market is too small and the required mods are not that easy.