In 2019, the Philippine Navy raised a requirement to procure a new class of Fast Attack Interdiction Craft (FAIC) that would be missile-capable and are based on Israel's Shaldag V patrol boat design, to replace the Tomas Batilo-class fast attack craft that had been retired from service.

[9] The hull number's use of "PG" indicates that the boats are classified as Patrol Gunboats based on Philippine Navy's 2016 naming classification standards.

In November 2022, Rear Admiral Toribio Acaci indicated that the service plans to acquire a total of 15 more Acero-class / Shaldag Mk.

[17] On 18 June, Lawrence Narag was assigned to Naval Forces Western Mindanao and deployed to Zamboanga City.

[18] The ship class is designed to carry one bow-mounted Mk.44 Bushmaster II autocannon mounted on Rafael Typhoon Mk 30-C remote-controlled weapon station, and two M2HB Browning 12.7 mm/50-caliber heavy machine guns mounted on Rafael Mini Typhoon remote-controlled weapon stations.