A large rally of protestors opposed to the sweeping gun control law approved in January has clogged the Capitol’s security entrances and is filling the park on the building’s west side this morning.

Though it is the third demonstration to be held against the measure, the rally is by far the largest to be held in Albany since it was signed into law by Gov. Andrew Cuomo in January.

Republican lawmakers opposed to the law, along with NRA President David Keene, are expected to speak today at the rally.

Organizers of the rally said they expected as many as 10,000 people to attend the demonstration, and at least 1,000 had appeared as of 11 a.m.

Fueling some of the anger this morning was Cuomo and Assembly Speaker Sheldon Silver revealing yesterday that they were mulling a chapter amendment to the law that would exempt Hollywood productions that use prop guns and magazines from the law.

“Nobody needs ten fake bullets to kill a deer,” said Republican Assemblyman Steve McLaughlin. “To worry about Hollywood at the expense of law abiding citizens of New York just shows how out of touch this administration is. To come out as your first amendment, you can’t get more off track than that.”

Cuomo, meanwhile, is downstate giving a version of his State of the State address and is not at the Capitol, which has had a heightened State Police presence in response to the heavy volume of protestors.

The governor said yesterday that the gun control law, which updates the state’s assault weapons ban and limits the number of bullets in a high-capacity magazine to seven, isn’t intended to hurt sportsmen or hunters or infringe on Second Amendment rights.

The state’s influential Conservative Party this morning, meanwhile, released a legislative memo opposing the proposal to require up to $1 million in limited liability insurance for gun owners.

The measure is sponsored by Assemblyman Felix Ortiz and Sen. Kevin Parker.

“The Conservative Party believes this bill would not stand up to a constitutional challenge since the right to bear arms is guaranteed by the 2nd Amendment and clearly shall not be infringed,” the party wrote in a memo. “This bill is an infringement on the right to bear arms and we urge the Members of the Legislature to vote against it.”