In 2009, the U.S. Marine Corps selected the Trijicon ACOG® 3.5x35 as its Squad automatic-weapon Day Optic (SDO). The SDO will mount on the M249 light machinegun to assist gunners in target detection, recognition and identification. This model includes the Trijicon RMR, providing the operator with quick target acquisition at close quarter distances or when vehicular mounted.

TA11SDO-CP also includes:

9.0 MOA RMR® Dual Illuminated Amber Dot Sight (RM05)
LaRue Tactical Quick Detach Mount
Tenebrax killFlash® Anti-Reflective Device
Set of Flip Up Lens Caps
SDO Pouch
1 LENSPEN® (TA56)
1 Lanyard Assembly for Adjuster Caps (TA71E)
1 Trijicon Logo Sticker (PR15)
1 ACOG Manual
1 Warranty Card