COLT M4A1 CARBINE SOCOM CARBINE 5.56MM NATO 30+1 FOR DUMMIES

Charlie's gives new higher receivers, the manufacturing facility rifle acquire-offs have check fired by Colt.  Upper receivers are acquire-offs from out with the box rifles and also are purchased as higher receiver assemblies.  Both are a hundred% identical.  We do not ship in Colt manufacturing facility box.I truly later on did that to a unique