03-18-2015, 02:59 AM
Variable Wrote:I have a factory AA 19.5" that was originally threaded 3/4x28. It's a Lothar barrel.
Back at the beginning — I wanna say 2004 —AA's sniper-style rifles were threaded 3/4x28. It would have been their GDMR model. Bill A. did this to have as much meat at the muzzle as possible.
