A new North Korean anti-aircraft gun suffered a barrel rupture during rapid-fire testing at a Chongjin firing range in mid-June 2026. The accident seriously injured two military officers monitoring the test from positions beside the weapon. Furthermore, insiders are questioning whether a rushed development and deployment schedule directly contributed to the failure. Consequently, the incident exposes significant vulnerabilities within North Korea’s defense weapons testing and verification processes.
Three organizations conducted the test jointly at the Chongjin range. These included the Academy of Defense Sciences anti-aircraft testing division, the Second Economic Committee’s artillery weapons inspection division, and Ninth Corps operations staff. The test aimed to verify the new gun’s rapid-fire capability and barrel reliability ahead of operational deployment. Unlike earlier models, the new anti-aircraft gun design significantly increases both firing rate and muzzle velocity simultaneously.
During testing, initial rounds fired without incident under standard conditions. However, when the gun transitioned into full rapid-fire mode, rising internal pressure and heat overwhelmed the barrel near the breech. The barrel tore open violently, expelling high-temperature gases and metal shrapnel outward toward monitoring personnel. As a result, one Ninth Corps technical officer suffered penetrating shrapnel wounds and significant blood loss, while an Academy of Defense Sciences officer sustained severe facial and upper-body burns.
Both officers received emergency on-site treatment before evacuation by rail to a military medical facility in Pyongyang. Military physicians reportedly indicated neither man’s life was in immediate danger. Nevertheless, a return to active duty appears unlikely for both injured officers. Additionally, authorities immediately placed the firing range under full access restrictions and required all personnel present to sign renewed secrecy pledges.
Investigators are now examining whether the barrel rupture stemmed from a design flaw or excessively aggressive test conditions. The artillery weapons inspection division raised concerns about metallurgical inconsistencies in domestically produced special steel. Moreover, engineers within the defense sector suggest the rapid-fire test proceeded without adequate durability verification due to pressure to meet reporting deadlines. Going forward, the accident raises broader questions about whether North Korea’s weapons development culture prioritizes speed over engineering safety standards.
