The Marine Corps has started fielding a new rifle optic designed to adjust for close and long-range targets for more precise shooting.
Marine Corps Systems Command’s Program Manager for Infantry Weapons began fielding the Squad Common Optic, or SCO, in January for the M4 and M4A1 carbines and the M27 Infantry Automatic Rifle, according to a Feb. 18 announcement.
The SCO, made by Trijicon, is a magnified day optic that features an optionally illuminated aim-point designed to improve a Marine’s targeting, according to the release.
Marines will be able to use the 1-8X variable-powered SCO to identify targets at both close and long distances, providing twice the visual range of the 4X fixed-power Rifle Combat Optic, which is also made by Trijicon.

Having an optic that can reach out to longer distances will ultimately make the Marine a more lethal first-shot shooter,” Roger Boughton, MCSC’s lead engineer for the SCO program, said in the release.
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