I don't really dig the whole forward mounted scope, been running a an Ultimak with an M3, Its fun for fast acquisition and CQB play, but I am thinking about doing a Sadlak mount with either a short dot or a 2.5-8 and scraping the Ultimak for a traditional handguard. I am leaning more toward the 2.5-8 for pushing it out to 600yds. I have no experiiance with the short dot or the 2.5-8. Any suggestions? I was looking at the Leupy MR/T 2.5-8, an SN-4, or the SN-4S on the samplelist.