The Jacinto-class offshore patrol vessels currently in service with the Philippine Navy are three ships formerly belonging to the Royal Navy's Hong Kong Squadron as Peacock-class corvettes until 1997.
BRP Artemio Ricarte, a Jacinto-class patrol vessel
BRP Emilio Jacinto (PS-35) and BRP Rizal (PS-74) representing the Philippine Navy together at a CARAT exercise with the US Navy
BRP Apolinario Mabini (PS-36) conducting SEAL delivery exercises
BRP Artemio Ricarte (PS-37) at Balikatan 2009 exercises.
The M242 Bushmaster chain gun is a 25 mm single-barrel chain-driven autocannon. It is used extensively by the U.S. military, such as in the Bradley fighting vehicle, as well as by other NATO members a
Jacinto-class patrol vessel
…fire 80 rounds in 60 seconds from its ready magazine, and the ships can carry a total of 450 rounds. The secondary weapon (located at the stern) is a M242 Bushmaster 25 mm cannon in an MSI Defense System DS-25 Seahawk A1 mount. Both guns are automated and are integrated with the Saab 9LV CMS and Saab EOS-500…
U.S. Army press photo of a M242 Bushmaster
Close up of the MK 38 naval variant
An enhanced M242 with a fluted barrel on an M2 Bradley (the top-mounted metal box and spotlight are MILES training attachments, not part of the gun system).
M793 target practice with tracer (TP-T) rounds for the MK-38 being inspected