Hey Comrades, My first post, so let me first thank all you service guys for serving. God willing, I pick up my first AR from FFL in a few weeks and I'm trying to figure out what hydro buffer size to order. Would anyone with a standard A2 stock on a LAR-8 pop it out and slap a micrometer on it for me? I called RR tech support and the gent said,"it might be 6 inches"... TWSS. <lmao> Trouble is that buffertech.com has one 5 7/8" (EARR-FS) and one 5 1/4" (EARR-10FS). Please let me know if you can point me in the right direction. Thank you for your time.