More than you ever wanted to know about obscure configurations of AOWs, SBRs, machine guns, and whatnot.
http://imgur.com/a/qdD5O
http://imgur.com/a/vt2Qz
Source threads on reddit:
http://www.reddit.com/r/guns/comments/vt5ge/atf_ftb_answers_my_questions/
http://www.reddit.com/r/guns/comments/1ue8iu/atf_ftb_answers_my_crazy_questions_part_2/
http://imgur.com/a/qdD5O
http://imgur.com/a/vt2Qz
Source threads on reddit:
http://www.reddit.com/r/guns/comments/vt5ge/atf_ftb_answers_my_questions/
http://www.reddit.com/r/guns/comments/1ue8iu/atf_ftb_answers_my_crazy_questions_part_2/