Thanks Axl, I have found the Choate M4 Buttstock Adapter For the TC Encore without the buttstock which would allow me to use virtually any AR-15 rifle stock possibly/hopefully any AR-15 Folding stock system. I'm also planning on using the 50 Alaskan cartridge with 750 gr Hornady A-Max bullet at 1500fps-1600fps out of a 16.5" rifle barrel with a twist rate 1 in 8 inches or faster. This is achievable with this cartridge/bullet/barrel length combination. It also doesn't really need to be overly discreet. I just thought that it would be amazing to have a fully assembled TC Encore (with the folding stock folded of course) inside a briefcase. I believe that the minimum barrel length for rifles is 16.5", I don't know off the top of my head what the minimum overall length for a rifle is 26-27"maybe (?), I also don't know the average length if AR-15 buttstocks are. But 26" overall length -16.5" barrel is 9.5" so as long as the AR-15 stock is at least 9.5" it should/would meet or surpass minimum requirements. As most AR-15 stocks are over 9.5" it should work. I don't exactly know what the dimensions of this system would be so I haven't began looking at briefcases or gun cases as if yet.
375rifleman