perfect, now go to a gun show and get some real mags and have fun. That firearm is truly one of my families favorites, very few range trips happen without that one making it. Great trainer
Have you pulled the trigger with the rifle fully assembled yet? I think it might be more clear when the weapon in fully assembled. you won't get a first click then the break you should come to a clear wall then pull for the actual break.
Keep shooting them and let the courts figure it out. 40 million estimated braced pistols in the US, 8 ATF agents assigned to clear E-Form 1's you do the math.
I don't think that anything outside of a buffer tube and maybe the old school pads are going to be ok. Plus if you're looking to stay pistol why the worry about 29".