From the press release …

Wixom, MI – Trijicon, Inc., global provider of innovative Brilliant Aiming Solutions™ for hunters, shooters, military and law enforcement personnel, is pleased to announce that the U.S. Army has commissioned an additional 10,000 TA31RCO-M150 Rifle Combat Optics to fill its TACOM IDIQ contract. The Army-designated TA31RCO-M150 is known by many simply as the 4×32 ACOG (Advanced Combat Optical Gunsight®.)

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The fixed 4-power M150 sight differs from ACOG units supplied to the U.S. Marine Corps in that its external windage and elevation adjusters allow the unit to be fully waterproof to an astounding 11 meters, even without its turret caps in place. This proven durability is one reason why the ACOG was awarded the Army’s demanding M150 contract.

This new order is in addition to existing 43,000 M150s already ordered through TACOM IDIQ contract, as well as the original IDIQ contract from the U.S. Army for 135,000 M150 units, placed in 2007.