Visitors to Lithgow Small Arms Museum will soon noticed changes to the centre thanks to an $82,000 NSW Government grant.

Minister for Racing and Member for Bathurst Paul Toole said new metal mesh screens would be installed on the northern windows and large internal panels, to help control heating at the museum.

"Not only will the project will help cool the museum in summer and keep it warmer in winter, it will also allow the facility to display light sensitive items like photos and paintings," Mr Toole said.

"This means guests will benefit from a more comfortable, temperature controlled, visit as well as be able to see original objects rather than copies."

The museum is an iconic local tourist attraction and has one of the southern hemisphere’s biggest collections of firearms. It helps visitors learn about the era of the Lithgow Small Arms Factory which operated from 1910 until the mid-1980s.

Mr Toole said the project was funded through the Clubgrants Category 3 Infrastructure Grants program.

"More than $50 million in funding is being provided during this current term of government for projects across sport and recreation, emergency preparedness, and arts and culture," Mr Toole said.

"These grants are funded by a contribution from the state’s registered clubs to reinvest profits from gaming machines back into community projects."

The program was improved in 2017 to give community organisations more chances to apply for a wider range of projects.

New funding ranges have encouraged more diverse projects, with a streamlined application process that cuts red tape and allows for faster assessment.