The aircraft is being built at the company’s assembly centre in Amarillo, Texas, US.
The development follows after Bell Textron started production of the UH-1Y Venom helicopters for the country in July last year, marking the first production for an international operator of the UH-1Y.
Purchase of the military helicopters is being executed as part of the first foreign military sale (FMS) of a mixed H-1 fleet.
The Czech Republic is acquiring four AH-1Z and eight UH-1Y military helicopters.
Bell H-1 programme director and vice-president Mike Deslatte said: “Bell understands what it means to execute a successful international programme.
“We understand the importance of providing the unmatched capability of the H-1 aircraft to our customers. Bell remains focused on producing exceptional combat aircraft and providing modern capabilities for the Czech Air Force as a partner in the H-1 programme, along with the US Government.”
In addition, Bell will also develop a flight training device for the Czech Republic.
Delivery of the first H-1 aircraft to the Czech Republic will start next year and be completed by 2024.
The H-1 programme aims to produce 217 AH-1Zs and 168 UH-1Ys, with more than 100 consecutive H-1s delivered on time for the US Marines Corps (USMC) and FMS clients.
The firm is also involved in the production of AH-1Zs for the US Marines Corps (USMC) and Bahrain Air Force.
Both AH-1Z and UH-1Y share an 85% commonality between parts and feature full mission capabilities.