RUMORED BUZZ ON XM177E2

Illustration of a M16A2-variety carbine modified with a rail interface method handguard to support Picatinny rail-compatible sights and equipment.Late in the war, one-shot grenade launchers which could be mounted underneath an M16’s handguard began arriving in Vietnam. The first launcher, the XM148, was co-made by Robert Roy, a similar Colt engin