The new DDM4V11 takes the popular V9 carbine from Daniel Defense and updates it with the KeyMod system. KeyMod is the new accessory attachment design for directly installing components onto a more ergonomic rail system that offers “return-to-zero.” Daniel Defense’s new SLiM Rail 15.0 is a 15-inch handguard rail that has an uninterrupted Picatinny rail on top and KeyMod attachment slots at 3, 6, and 9 o’clock. “Our customers have been hounding us for a KeyMod rail”,...