I am in the middle of building a 6.5Grendel/264LBC right now as my first AR15. But for as long as I can remember I have wanted to clone one of the carbines used in Operation Gothic Serpent( aka: Black Hawk Down). In particular I wanted to do one of the suppressed 727 used. I know I will probably never be able to make an exact clone. But I want to get as close as possible. Since Ops inc doesn't make suppressors anymore I have to go to AE suppressors. The two suppressors I would most likely use are their AE30 and AEM5. Just add, the AE30 is the same thing as the original OPS inc 3rd model used, just it is a .30 caliber suppressor instead of a .22 caliber suppresser. The AEM5 the exact same thing as a OPS inc 12th model suppressor used on the MK12 mod1. For the people that don't know.
So, if I get the AE30, what barrel length would I need to use in a carbine length gas system to have it butt up against the FSB? What barrel length would I need to for a Mid-length gas system to get the same affect?
If I can only get the AEM5, what barrel length would get me closest to the FSB with the suppressor for a Carbine length gas system, and which barrel length for a mid-length gas system?
Here are two photos for reference. One from real life borrowed from the 1993 Somalia car15 thread , one from the movie Black Hawk Down.