The New Zealand military and the Australian military have already announced their plans to remove the inscriptions from their Trijicon scopes. The British military had also expressed concern about the codes.
Trijicon has a $660 million multi-year contract to provide up to 800,000 sights to the Marine Corps, and additional contracts to provide sights to the U.S. Army.
U.S. military rules specifically prohibit the proselytizing of any religion in Iraq or Afghanistan and were drawn up in order to prevent criticism that the U.S. was embarked on a religious "Crusade" in its war against al Qaeda and Iraqi insurgents.
A photo on a Department of Defense Web site shows Iraqi soldiers being trained by U.S. troops with a rifle equipped with the bible-coded sights.
One of the citations on the gun sights, 2COR4:6, is an apparent reference to Second Corinthians 4:6 of the New Testament, which reads: "For God, who commanded the light to shine out of darkness, hath shined in our hearts, to give the light of the knowledge of the glory of God in the face of Jesus Christ."
Other references include citations from the books of Revelation, Matthew and John dealing with Jesus as "the light of the world." John 8:12, referred to on the gun sights as JN8:12, reads, "Whoever follows me will never walk in darkness, but will have the light of life."
"It's wrong, it violates the Constitution, it violates a number of federal laws," said Michael "Mikey" Weinstein of the Military Religious Freedom Foundation, an advocacy group that seeks to preserve the separation of church and state in the military.
"It allows the Mujahedeen, the Taliban, al Qaeda and the insurrectionists and jihadists to claim they're being shot by Jesus rifles," he said.
Weinstein, an attorney and former Air Force officer, said many members of his group who currently serve in the military have complained about the markings on the sights. He also claims they've told him that commanders have referred to weapons with the sights as "spiritually transformed firearm[s] of Jesus Christ."
He said coded biblical inscriptions play into the hands of "those who are calling this a Crusade."