I'm tossing around either having the barrel threaded for the A2 or having it shortened with the addition of a permanently attached A2 to make the overall length 16". Any pro's or cons with each? How will the chrome lining, velocity, etc be affected?

Also, I'm thinking about adding a FSB with the bayonet lug (purely for cosmetic reasons!); Does ADCO use the taller colt's with the side swivel for replacement?

Thanks for your input!