US SOF drove the adoption of optics in the 1990s, formalizing what had been a lot of single-unit experiments with the circa 2000 SOPMOD initiative. 10 Meter Zeroing, Set the M145 Straight Telescope to Mechanical Zero. Zeroing the M145 Straight Telescope on the M240B and M249 Machine Guns. Figure out how far your target is and use the appropriate hashmark.
It is a simple holdover reticle designed for 5.56x45 SS109 out of an M4 barrel. But I`d like to know everithing about ELCAN reticle before. If the MGO is removed from the rail the operator must return the device to that same position in order to insure that zero is retained. Ensure that the M145 is securely attached to the feed tray cover rail and begin eye relief adjustment, IAW TM 9-1240-415-13&P. Place the M145 approximately 70mm (2-3/4 inches in front of the firing eye. government model (NSN 1240-0) of the ELCAN 3.4x magnification optical rifle sight employed as the standard machine gun optical sight (MGO).
Army and other elite fighting teams for application to Machine Guns, M4 Carbines, M16/ and AR10 rifles.
