Here is the one I got from DRMO when I was Active Duty. The 1348 said it had excessive parallax. I adjusted the parallax on the front ring for 300yds and had Unertl in Mars, PA (I thought the guys name was Archie?? looked it over, re-rounded the ocular bell (had a dent) and re-inerted it with Nitrogen. Cost me $300 in 2004 and I had since retired. The then-head of USMC Infantry Weps asked for it back as they were low on serviceable scopes (2004). He (Maj. Manning) assured me I could apply for its return when they were obsoleted by the S&Bs. When I applied for its return in 2009, the now-civilian puke in charge of USMC Optics and Non-Lethal said "Too bad, so sad" No record of it and since I wasn't in a unit that was supposed to have it, he had no reason to return it. My next step is to contact my Senator, but that's Toomey ... FML. I still have my paperwork. Its serial # is 1857