The Corpo blaster, otherwise referred to as the B1-NA blaster pistol, was a type of blaster pistol utilized by Tac-Corpo officers within the Pre-Mor Enforcement, the security division of Preox-Morlana. These weapons were marked with a Preox-Morlana corporate logo and serial number, and were equipped with a removable sight.
During 5 BBY, Syril Karn was armed with this type of blaster as a member of a Pre-Mor Security Inspection team that was trying to locate and apprehend Cassian Andor while he was in hiding on Ferrix. Andor later stole Karn's blaster and possessed it for a period. Arvel Skeen grew wary of Andor when he observed the corporate-issued blaster during the planning stages of a mission on Aldhani, and he questioned Andor about its origin. Following the mission, Andor concealed the weapon in a secret compartment on Niamos, where it remained after his arrest and subsequent imprisonment at the Narkina 5 Imperial Prison Complex. After Andor and Ruescott Melshi escaped from Narkina 5, Andor returned to Niamos, recovered the hidden box, and gave the blaster to Melshi before they separated.