Hi HopUp! Today I have some Hi-Quality m4 externals as the last buyer decided to back out without warning. They have a discontinued SR10 rail, an unknown outer barrel, unknown stubby suppressor, a steel G&G 416 lower, and just a random Echo1 upper with an integrated carrying handle. Buffer tube and stock not included. Semi-open to trades. (Would love a v12, inferno gen 2 upgrade kit, a ninja carbon fiber HPA tank, or more)