I have sig romeo 4 or 5...and you get a red dot..through narrow tube (I have iit on my KelTec RFB 308 bullpup (rifle 25"long) Tavor 24"....The EoTech..wide ass view with reticle and is VERY easy to shoot with both eyes open..I've seen a lot of military folks with one..Why do you prefer the EoTech over Sig? (not trying to jack the thread - lol)