1. I BELIEVE she is incorrect as FEDERAL laws require that once a rifle, always a rifle. And a rifle is at least 16.5" barrel with 26" overall. This is why some people took a Choate Ultimate Sniper stock, cut off the butt stock and used a rifle action with over 16" barrel and rear trigger assembly.

2. Striker triggers are mounted to the internal mag (2-3 shots). There are at least 3 different generations. First gen is a tension bar and roller setup, gens 2 and 3 are lever bars.

Personally, if I was going to MAKE my own Striker rom a rifle action, I would use an aftermarket trigger assembly and a simple trigger and bar from the front area (somewhere just behind the recoil lug). It would be single shot to reduce clutter in the way. Or I would make it all electric.

Your money and time.

Larry
Tinkerer