hello im am not the founder of this glitch a guy on my friends list found it and i offerd to post it for him its kinda tricky but its easy once you can use to it my current secondary is akimbo fmg 9 with red dot sight ok heres the steps i cant post a but this should be easy to understand
1)make a class with say fmg9 with red dot sight
2) go back the main menu of mw3
3)go to call of duty elite the website or the phone app either one works
4)go to the class with the fmg9 red dot ,then change it to no attachments
5) send changes to game
6) heres where it gets tricky the way i do it is i lag stwitch my self so the changes take forever to come through but you wanna go back into multi player load your vault that way it fetches your profile and stuff so you can just hit xbox live
7) go to the class with the fmg it should still have red dot sight then hover over akimbo then accept the changes and hit akimbo then it will freeze up for like 2-3 seconds and ull have akimbo fmg9 with red dot sight or what ever attachments you decied to use.
if you need any help message me on xbox my gamertag is : animalpornftw cheers guys i hope it wasent to complicated for you


here a screen shot from one of my games just for proof [ Register or Signin to view external links. ]