IM THE GUY they are refering to that has one on my rifle. And yes it does get a lot of weird looks.
The scope is called a trilux or a SUIT (sightunit infantry trilux). You will notice that it has a cam on the side, with numbers (probly 250 and 450) sight it in at 250 yards on the 250 mark when you flip the cam you are on at 450.While this sight is meant for mounting on a carry handle tapco has a mount (which is what i have) to mount the sight on a flat top. The also have manuals for the scope for DIRT CHEAP.
NOTE: Trilux lamps have no significant level of external radiation and no hazard can arise unless a lamp is broken. Breakage of the lamp and the release of tritium gas can result only from misuse of the equipment. In the event of breakage, the following precautions shuld be taken.
a. The escaping gas should not be inhaled
b. the broken parts should not be handle with bare hands
c. If breakage occurs indoors, doors and windows should be opened to allow gas to clear. there is little danger if breakage occurs outdoors.
d. any breakage must be reported immediately.
But DONT WORRY most likely the trilux lamp was taken out and replaced with a red LED