FN America has delivered samples of two 6.5mm prototype systems to the US Department of Defense for testing under its irregular warfare program.
Arms manufacturer FN America has delivered samples of two 6.5mm prototype systems to the US Department of Defense for live evaluation.
The shipment to the Irregular Warfare Technical Support Directorate (IWTSD) includes the LICC-Individual Weapon System (LICC-IWS) and the LICC-Assault Machine Gun (LICC-AMG), plus suppressors, magazines, and the new 6.5x43 LICC ammunition family.
The LICC-IWS is a magazine-fed rifle offered in three barrel lengths to cover close quarters, general purpose, and designated marksman roles.
The LICC-AMG, meanwhile, is a lightweight, belt-fed machine gun that uses the same 6.5x43mm round and a side-feed with light metallic links.
FN also shipped a stainless steel-cased ammo variant, which reduces carried weight by roughly 20 percent compared with brass.
Several LICC variants and two suppressors have already received national stock numbers, allowing units to requisition them for testing.
The IWTSD runs targeted evaluations designed to replicate the unpredictable conditions of expeditionary and low-intensity conflicts. Tests focus not only on ballistic performance, but also on maintainability, transportability, and ease of use under stress.
For a defense firm, passing these evaluations can unlock further government trials, prototype contracts, and potential fielding pathways. The directorate’s findings, when published or briefed to program offices, will guide the next technical and procurement steps.
Lightweight Intermediate Caliber Cartridge (LICC) Assault Machine Gun and LICC Individual Weapon System. Photo: FN AmericaImproving Arms Performance
The Pentagon’s acceptance of FN’s 6.5mm samples fits into a broader push to reassess infantry calibers and small-arms performance.
In recent years, the US and allied forces have funded tests of alternative rounds, including 6.8mm and other intermediate calibers, to close engagement gaps revealed in combat.
Manufacturers have responded with new rifles and carbines, updated optics and suppressors, and designs that remain compatible with existing logistics.
For example, SIG Sauer has advanced its 6.8mm family, including MCX Spear–derived designs that aim to extend range and terminal effect.
