This AR-15 Complete Upper in .223 Wylde has a 20" unthreaded heavy parkerized, 1:8 Twist Rate, rifle length gas system barrel. It includes the new 15" MLOK Rail, an M4 flat-top billet upper receiver, a bolt carrier group, a flash hider, and a right-side charging (Gen2) handle (patent protected), and fit on any AR-15 mil spec multicaliber lower.
