As a light-weight anti-plane (AA) gun in certain ships; up to 6 M2 guns may be mounted on the same turret. The GAU-eighteen/A is a lightweight variant on the M2/M3 and is particularly utilized to the USAF's MH-53 Pave Small and HH-60 Pave Hawk helicopters. These weapons utilize the M2HB https://bookmarkspedia.com/story2271165/detailed-notes-on-browning-guns