This video explores a non-functional mockup of the XM29 OICW, a 1990s US military program aiming to consolidate the M16, M4, and M203 into a single weapon. It featured a 5.56mm rifle and a 20mm smart grenade launcher with programmable detonation. The program ultimately failed due to excessive weight and complexity, though its rifle component influenced the HK XM8.
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