KABUL, AFGHANISTAN - Marines have been using the Rifle Combat Optic from Trijicon for years -- giving them a much clearer view on the battlefield.

But despite the improvements, they've still run into problems with Rules of Engagement violations and civilian casualties.

"That all ends today," said Lieutenant Colonel Todd Brogan in a press conference in Kabul.

Brogan briefed the media on a Marine Corps research project -- working alongside Trijicon and Afghan President Hamid Karzai -- to improve the current weapon sight.