XM320 Grenade Launcher Module (GLM)

The XM320 Grenade Launcher Module (GLM) program is a significant initiative under the Army's modernization priorities, aimed at building a more lethal force. This program seeks to enhance joint lethality in contested environments by addressing the erosion of close combat capabilities relative to peer competitors, as outlined in the National Defense Strategy. The XM320 GLM is designed as a 40mm low-velocity grenade launching weapon system that replaces the M203 series on M16 rifles and M4 carbines. Its modular design allows it to be mounted under the barrel or used in a stand-alone configuration, providing flexibility and improved safety features.

The primary goals of the XM320 GLM program include procurement and fielding efforts for this advanced weapon system. The program aims to deliver enhanced capabilities through components such as the Grenadier Sighting System (GSS) and the XM100 40mm fuze programmer. These components support high explosive air burst capabilities and are integral to the new 40mm Family of Ammunition. The GSS provides day and night target engagement capabilities with multiple ballistic solutions, enhancing operational effectiveness in diverse combat scenarios.

Additionally, the XM320 GLM program focuses on ensuring reliability and safety through modern design features like a double-action trigger/firing system and a side-loading unrestricted breech. The use of lightweight material composites further improves durability, making the system more robust in various operational environments. The procurement strategy includes acquiring hand-held laser range finders and other accessories to accommodate new ammunition shock profiles, contingent upon confirmation from the Joint Program Executive Office Armaments and Ammunition.

The program also emphasizes logistical support and training to ensure effective deployment across active and reserve components for homeland defense missions and domestic emergency responses. Integrated logistics support and new equipment training are crucial elements of this initiative, ensuring that personnel are well-prepared to utilize these advanced systems effectively. The XM320 GLM program represents a comprehensive effort to enhance the Army's combat capabilities through strategic procurement and modernization initiatives.